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Tip-up barrel

A tip-up barrel is a mechanism in firearms, particularly pistols and revolvers, that allows the barrel to pivot upward from a hinge at its forward end, enabling users to load a cartridge directly into the chamber without manipulating a slide or cylinder gate. This design also facilitates safe unloading by permitting the removal of spent casings through the same upward tilt, making it advantageous for compact, low-profile firearms.^[1]^[2] The mechanism originated in 19th-century designs and saw evolution in semi-automatic pistols in the early 20th century. It achieved prominence through Italian manufacturer Beretta, which popularized the feature in pocket pistols for concealed carry. These firearms are valued for their effortless loading system, which minimizes noise and manipulation—ideal for discreet self-defense—while maintaining a slim profile suitable for pocket carry.^[3] Modern variants, such as the Beretta 20X Bobcat (.22 LR, introduced in 2025) and Girsan MC 14T (.380 ACP, a Beretta-inspired design), continue to leverage the tip-up barrel for enhanced accessibility, though it remains uncommon outside subcompact calibers due to recoil management limitations in larger rounds.^[4]^[5]

History

Origins in 19th-Century Firearms

The tip-up barrel mechanism emerged in the mid-19th century as an innovative solution for expediting the loading of early cartridge-firing revolvers, transitioning from slower percussion cap and muzzle-loading systems prevalent in the 1840s and early 1850s. Pioneered by American gunsmiths Horace Smith and Daniel B. Wesson, the design addressed the need for rapid reloading in compact firearms suitable for personal defense, building on the 1855 patent by Rollin White for a bored-through cylinder that enabled the use of metallic cartridges from the rear. This advancement allowed shooters to insert self-contained rimfire rounds directly into the cylinder without tools or loose powder, marking a pivotal shift toward more efficient repeating handguns during a period of rapid firearms evolution following the Mexican-American War.^[6]^[7] The first commercial embodiment of the tip-up barrel appeared in the Smith & Wesson Model 1 revolver, introduced in 1857 and chambered in .22 Short rimfire. This seven-shot, single-action design featured a barrel that pivoted upward approximately 90 degrees at the forward end of the frame's top strap via a spring-loaded latch, permitting the cylinder to be lifted out for manual loading of individual chambers with cartridges. The mechanism eliminated the cumbersome process of aligning and ramming charges, as seen in earlier cap-and-ball revolvers, and required no ejector rod for spent cases, enhancing usability in confined spaces. Early production focused on a 3.25-inch ribbed octagonal barrel and bronze frame for lightness, with the first issue manufactured from 1857 to 1860 yielding approximately 11,700 units.^[6]^[7]^[8] The tip-up configuration drew inspiration from the emphasis on concealability in single-shot derringers, such as those popularized by Henry Deringer in the 1840s and 1850s, which prioritized pocket-sized portability for urban self-defense despite their single-shot limitation. While Deringer's percussion models relied on breech-loading without a tipping action, the tip-up revolver extended this compact ethos to multi-shot capability, fostering designs that balanced discretion with firepower for civilian carry. Subsequent variants of the Model 1, including second-issue improvements from 1860 to 1868 with steel frames and refined rifling, maintained the core tip-up hinge while addressing durability issues from high-velocity .22 rounds.^[9]^[10] Smith & Wesson expanded the tip-up line with the Model 1 1/2 in .32 rimfire starting in 1865, featuring a five- or six-shot cylinder and longer barrels for increased velocity, alongside the Model 2 .32 rimfire introduced in 1861 as a larger-frame counterpart. These models retained the upward-pivoting barrel joint at the top strap for tool-free cylinder access and individual chamber loading, with production emphasizing manual operation suited to the era's rimfire ammunition. Overall, tip-up revolvers remained in manufacture through the 1890s, with over 560,000 units produced across the Models 1, 1 1/2, and 2 series.^[8]^[10]^[11]

Evolution into Semi-Automatic Designs

The adaptation of the tip-up barrel mechanism from manual revolvers to more advanced self-loading designs began in the late 19th century, with innovators like Joshua Stevens pioneering compact single-shot pistols that emphasized simplicity and concealability. In 1864, Stevens secured U.S. Patent No. 44,123 for a breech-loading tip-up action, which allowed the barrel to pivot upward for direct insertion and extraction of cartridges, eliminating the need for a slide or complex breechblock. Production of these pistols commenced in 1872 under the J. Stevens Arms & Tool Company, initially chambered in .22 rimfire for pocket carry, marking an early shift toward streamlined reloading in small arms.^[12] Key models exemplified this evolution, such as the No. 41 Pocket Pistol introduced around 1903, featuring a short 2.5-inch barrel and abbreviated grips for enhanced concealability in urban or frontier settings. Variations like the Diamond model, produced from 1886, offered slightly longer barrels up to 3 inches while retaining the tip-up for quick access, appealing to users seeking a balance between portability and usability in .22 rimfire. These designs dominated the market, with Stevens Arms producing hundreds of thousands of single-shot tip-up pistols by the early 1900s, underscoring their commercial success until the company's acquisition by Savage Arms in 1920.^[12] Although rifles like the Maynard tip-up single-shots from the 1870s shared similar principles, handgun variants drove the focus on pocket-sized innovation.^[13] The tip-up mechanism began appearing in semi-automatic pistols in the 1920s, with the Spanish JO.LO.AR. as an early example designed for cavalry use, allowing one-handed loading.^[14] This transitioned into more widespread applications in pocket-sized blowback-operated designs using low-pressure calibers like .25 ACP, retaining the tip-up for initial loading and unloading while enabling automatic cycling. Further development occurred in the mid-20th century with Italian designs.^[15] In the cultural context of the American Old West, tip-up pistols gained popularity as reliable backup weapons for lawmen and settlers, valued for their straightforward operation in dusty, rugged environments where complex actions might jam. Their single-shot nature, bolstered by the tip-up's simplicity, offered dependable performance without the vulnerabilities of multi-chamber revolvers, contributing to widespread adoption as secondary carry options during the late 1800s.^[12]

Design and Mechanism

Core Operating Principles

The tip-up barrel mechanism in firearms features a barrel hinged to the frame at its lower front end, typically via a pivot pin located near the muzzle, which allows the barrel to swing upward away from the breechface and firing pin. This design enables direct access to the chamber for loading or unloading cartridges without the need to manipulate a slide or other reciprocating components in many models. When closed, the barrel locks securely into alignment with the frame's firing pin or striker through a dedicated locking lug or latch, ensuring stability during firing.^[16]^[17] In the loading process, the user depresses a barrel release lever or latch—often positioned on the frame or trigger guard—to disengage the lock, permitting the barrel to pivot upward and expose the fixed chamber. A cartridge is then manually inserted directly into the chamber, after which the barrel is rotated back downward until it snaps into place with an audible click, confirming engagement of the locking mechanism. Basic designs lack an integrated magazine, relying solely on single-shot loading, while semi-automatic variants incorporate a magazine for subsequent rounds; however, the tip-up feature facilitates chambering the first round effortlessly, particularly beneficial for users with limited hand strength. For unloading or ejection in semi-automatic operation, the barrel is tipped up manually to remove live rounds, or, after firing, blowback forces drive the slide rearward to extract and eject the spent case via an ejector before chambering the next cartridge from the magazine.^[16]^[17]^[18] Key components include the pivot pin, which serves as the hinge axis; the barrel latch or release lever for controlled pivoting; and the locking lug, which aligns the chamber precisely with the firing mechanism to prevent misalignment. Unlike tilting-barrel or short-recoil systems, the tip-up design employs a fixed barrel during operation—held rigidly by the front pivot and rear lock—eliminating barrel movement and reciprocating mass beyond the slide, thereby reducing overall size, weight, and mechanical complexity. This fixed-barrel configuration, combined with straight blowback operation in semi-automatics, suits low-pressure rimfire and pocket calibers such as .22 LR, .25 ACP, and .32 ACP, where simple extraction can occur without robust extractors in some implementations, as the low recoil minimizes stress on the hinge.^[16]^[17]^[3] Safety features integral to the mechanism include a secure barrel lock that prevents accidental tipping under firing pressures or recoil, requiring deliberate activation of the release lever to pivot the barrel. In later models, this is augmented by manual safeties, such as hammer blocks or trigger disconnectors, that integrate with the frame to disable firing if the barrel is not fully closed, enhancing reliability for concealed carry or pocket use. The design's inherent safety stems from the barrel's separation from the firing pin when tipped, blocking potential discharge until properly seated.^[16]^[17]

Comparison to Other Barrel Actions

The tip-up barrel mechanism in handguns pivots upward from a hinge positioned near the front of the frame, exposing the chamber for direct loading, in contrast to traditional break-action designs commonly found in shotguns and rifles, which hinge at the rear breech and open downward to reveal the loading area. This front-hinged, upward-opening configuration optimizes tip-up barrels for compact, concealable pistols by minimizing the overall length and profile required for operation, whereas break-actions accommodate longer barrels in shoulder-fired weapons for better balance and extraction.^[19] Unlike tilting barrel systems, such as the short recoil design pioneered by John Browning, where the barrel tilts downward at the rear during recoil to disengage locking lugs from the slide—allowing semi-automatic cycling with higher-pressure ammunition—the tip-up barrel functions as a static, manually operated component during firing, relying on blowback for ejection after the initial manual load. Tilting barrels support higher magazine capacities and seamless automatic reloading but demand greater mechanical precision to manage recoil forces, increasing manufacturing complexity compared to the simpler hinge-based tip-up approach.^[20] Compared to fixed barrel semi-automatic pistols, which use a stationary barrel with a reciprocating slide and robust recoil spring to cycle rounds via blowback, tip-up designs eliminate the need to rack the slide for chambering the first round, enabling lighter overall weight—often under 12 ounces in pocket models like the Beretta 21A—through reduced slide mass and simpler loading geometry. However, fixed barrel systems provide fully automatic operation without manual intervention, whereas tip-ups require user action to clear malfunctions or unload, potentially complicating rapid follow-up in dynamic scenarios.^[3] Tip-up barrels offer advantages in simpler manufacturing due to fewer specialized moving parts for the loading process and easier field stripping, as the hinge allows straightforward disassembly without tools. Drawbacks include vulnerability to hinge wear over extended use and inherently limited multi-round capacity in designs without magazines, though many incorporate magazines for semi-automatic fire. Rare hybrid evolutions combine tip-up elements with break-action in single-shot firearms, but these remain distinct from top-break revolvers, such as the Webley models, where the barrel and cylinder assembly pivot downward together from a rear hinge for collective reloading.^[19]^[21]

Notable Examples

Tip-up Revolvers

The tip-up revolver design, pioneered by Smith & Wesson in the mid-19th century, represented a significant advancement in cartridge-loading handguns by allowing the barrel to pivot upward from the frame, providing unobstructed access to the cylinder for reloading. This mechanism was particularly suited to the small-caliber pocket revolvers that dominated early production, emphasizing concealability and simplicity over rapid fire. Smith & Wesson's initial models, introduced amid the transition from percussion to rimfire cartridges, became staples for personal defense and saw limited military adoption.^[22]^[23] The Smith & Wesson Model 1, launched in 1857, was the company's inaugural firearm and the first practical .22 rimfire revolver, featuring a 7-shot capacity in a compact frame weighing approximately 11 ounces with a 3.25-inch octagonal barrel. Subsequent variants included the Model 2 Army of 1861, chambered in .32 rimfire with a 6-shot cylinder and a longer 6-inch barrel for improved accuracy, and the Model 1-1/2 introduced in 1865, a 5-shot .32 rimfire design with a 3.5-inch barrel and optional pearl grips for enhanced aesthetics. These models shared the core tip-up action, where the barrel hinged at the top front of the frame and latched at the lower front, enabling full cylinder exposure without a loading gate. Production of the Model 1 reached over 115,000 units by 1868 across its first and second issues, while the Model 1-1/2 totaled about 25,000 in its initial run through 1869, and the Model 2 exceeded 77,000 by 1874.^[6]^[24]^[25]^[26] Loading these revolvers involved tipping the barrel upward to disengage the cylinder, which could then be fully removed for individual cartridge insertion into each chamber, a process that prioritized thorough access over speed and marked a departure from cap-and-ball methods. Empty cases were ejected manually or with an optional punch tool, and the cylinder was reinstalled before closing the barrel. During the American Civil War, these lightweight tip-up models served as officer sidearms and cavalry backups for Union forces, valued for their reliability with rimfire ammunition despite the era's preference for larger percussion revolvers. Variants included strengthened frames in later issues for durability, though adoption by other manufacturers remained limited; Frank Wesson produced niche tip-up pocket models in .22 caliber during the 1870s, focusing on single-shot designs rather than multi-chamber cylinders, but Smith & Wesson maintained dominance in the revolver segment.^[23]^[27]^[24]^[28] By the 1880s, the tip-up design waned as top-break mechanisms, such as the Smith & Wesson No. 3 introduced in 1870, offered faster simultaneous ejection and reloading via an integrated star extractor, better suiting evolving tactical needs and more powerful centerfire cartridges. The Model 1's third issue extended production until 1882 with refinements like fluted cylinders and iron frames, but the overall series was phased out in favor of these more efficient actions, ending an era of innovative yet specialized pocket revolvers.^[26]^[22]

Early Tip-up Semi-Automatic Pistols

The Steyr-Pieper Model 1908, developed by Belgian designer Nicolas Pieper and licensed to the Österreichische Waffenfabriks Gesellschaft (Steyr) in 1908, represents one of the earliest commercial semi-automatic pistols featuring a tip-up barrel mechanism. This compact blowback-operated design, primarily chambered in 6.35 mm Browning (.25 ACP), utilized a hinged barrel that tilted upward via a release lever, allowing users to manually chamber the first round or clear malfunctions without manipulating the slide—an innovative aid for pocket carry in an era when semi-automatic handguns were still novel. Production began in 1908 and continued through the 1920s, with approximately 135,800 units manufactured, including variants in 7.65 mm Browning (.32 ACP) and longer-barreled models to skirt firearm regulations in some regions. The pistol's fixed barrel contributed to its simplicity and reduced felt recoil, though it was optimized for subsonic, low-pressure ammunition to ensure reliable cycling in the unlocked breech system.^[29] Building on this foundation, the Spanish JO.LO.AR pistol, patented by José López de Arnaiz in 1919 and produced starting in 1924 by Hijos de Calixto Arrizabalaga in Eibar, further refined the tip-up concept for semi-automatic pocket firearms. This single-action, blowback-operated handgun was offered in calibers such as .25 ACP, .32 ACP, .380 ACP, and 9 mm Largo, with around 30,000 units made until 1931, including military contracts for Peru and limited use in the Spanish Civil War. The design incorporated a unique right-side lever (palanca) on the slide for one-handed cocking, paired with a tip-up barrel unlocked by a left-side catch, facilitating easy initial loading and extraction without an extractor tool—a practical solution for concealed carry "vest pistols" where slide racking could be cumbersome. Lacking a trigger guard and featuring a rebounding hammer, the JO.LO.AR emphasized compactness, though its absence of a manual safety reflected the era's focus on simplicity over modern safety features. The fixed barrel design similarly minimized recoil for its small frame, limiting it to lower-velocity rounds for consistent operation.^[30] These early tip-up semi-automatics filled a niche in the interwar period as affordable, concealable options for personal defense, with production peaking in the 1910s to 1930s amid growing demand for pocket-sized handguns in Europe and export markets. Their manual barrel tipping addressed common semi-auto loading challenges, such as stiff slides on small frames, while the blowback action with fixed barrels provided reliable function for low-powered cartridges like .25 ACP, though vulnerabilities to dirt and higher-pressure ammo were noted in field use. By the late 1930s, World War II disruptions curtailed manufacturing, shifting focus to larger military sidearms, but these designs influenced subsequent European pocket pistol trends emphasizing ease of use for civilians.^[3]

Modern Applications

Beretta Tip-up Models

Beretta's modern tip-up barrel pistols trace their origins to the 950 Jetfire, introduced in 1952 as a compact semi-automatic chambered in .25 ACP with an 8+1 round capacity.^[31]^[32] The design's signature tip-up barrel allows users to load the first round directly into the chamber without racking the slide, making it particularly accessible for individuals with limited hand strength, such as those with arthritis.^[31]^[33] This feature, combined with the pistol's lightweight aluminum frame and overall length of approximately 4.9 inches, positioned the Jetfire as an ideal pocket-sized option for concealed carry.^[32] The lineup evolved with the 950B Minx variant, also launched in 1952 but chambered in .22 Short for reduced recoil and cost, maintaining the same tip-up mechanism and 6+1 capacity in a similarly diminutive package.^[34] By 1984, Beretta introduced the Model 21 Bobcat, available in .25 ACP (8+1 capacity) or .22 LR (7+1 capacity), featuring a double-action/single-action trigger and blowback operation for enhanced versatility in rimfire shooting.^[35]^[36] The Bobcat's fixed barrel during firing and overall length of 4.92 inches improved handling over earlier models.^[1] In 1996, the 3032 Tomcat expanded the series into .32 ACP, offering a 7+1 capacity and deeper concealment profile at 4.9 inches long (standard model), appealing to users seeking slightly more stopping power in a subcompact form.^[37]^[36] Key design innovations across these models include the tip-up barrel's integral extractor function, which facilitates reliable chambering and ejection without a traditional external slide manipulation, alongside an open-top frame that eliminates a full slide enclosure for reduced weight and snag-free carry.^[3] Weights typically range from 11 to 15 ounces unloaded, with barrel lengths of 2.4 to 2.9 inches, enabling pocket holster compatibility.^[1]^[38] Finish options like nickel plating and custom grips, including textured polymers or wood, allow personalization while preserving the pistols' all-metal durability.^[36] The absence of an extractor in some variants, like the Bobcat, relies on blowback gas for case removal, though this can lead to occasional fouling in extended use.^[35] Production of the 950 Jetfire continued robustly into the 1980s, with the series influencing Beretta's ongoing commitment to micro-pistols; the Bobcat remains in production as of 2025. In 2025, Beretta introduced the 20X Bobcat, a modernized .22 LR variant with an 8-round capacity, threaded barrel options for suppressors, and improved ergonomics for enhanced concealed carry and training use.^[39] The Tomcat line has seen updates like the 2024 30X model, incorporating modern ergonomics while retaining the core tip-up system.^[40] These pistols have cultivated a dedicated user base among concealed-carry enthusiasts, particularly for backup roles due to their slim profiles and low recoil, with strong international demand in Europe and South America where compact self-defense options are prized.^[41]^[1] Safety features, such as the Bobcat's frame-mounted manual safety and the Tomcat's rotating barrel lock for secure storage, further enhance their appeal for discreet, everyday protection.^[36]

Other Contemporary and Niche Uses

In the 1970s, American manufacturer Rock Pistol Mfg. produced inexpensive tip-up barrel single-shot target pistols chambered in .22 LR, such as the Rex-Merrill "Sportsman" model with a 9-inch barrel, which were imported to the United States as affordable entry-level firearms for plinking and training.^[42] These pot-metal constructions were marketed for their simplicity and low cost but gained a reputation for marginal quality, often classified as "Saturday night specials" under evolving import regulations.^[43] Niche American designs have sustained the tip-up barrel in compact, derringer-style firearms, exemplified by North American Arms' mini-revolvers introduced in the 1980s. The later Ranger series features a tip-up barrel mechanism that hinges upward for quick cylinder access and loading, offering a 5-shot capacity in .22 LR for concealed carry or backup roles with minimal recoil; standard models like the NAA-22LR use a fold-down cylinder instead.^[44]^[45] Similarly, Heizer Defense's PS1 Pocket Shotgun, launched in the 2010s, employs a pivoting tip-up barrel in a single-shot format chambered for 2.5-inch .410 bore shotshells or .45 Colt, providing a pocket-sized option for snake control or small-game loads in survival scenarios.^[46] Tip-up barrels also appear in non-lethal training and replica applications, such as the WE-Tech Ultra Compact 950 gas blowback airsoft pistol, which replicates the mechanism for realistic handling practice without live ammunition, aiding in skill development for compact firearm operation.^[47] As of 2025, tip-up barrel production remains limited, overshadowed by striker-fired compact pistols, yet retains niche appeal for low-recoil training platforms like the Taurus 22TUC, a 9+1 capacity .22 LR semi-automatic designed for easy chambering of standard or +P loads in pocket carry.^[48] Foreign imports, such as the Turkish Girsan MC14T .380 ACP (imported by European American Armory), continue in small volumes for premium concealed carry, offering 7+1 capacity with a tip-up for racking-impaired users.^[49] The 1968 Gun Control Act curtailed imports of many small-caliber tip-up designs lacking "sporting purpose," effectively banning cheap foreign models below certain size and quality thresholds to curb crime-associated handguns.^[50] Aftermarket innovations enhance these firearms' utility, including hybrid integrations like Crimson Trace Lasergrips for compatible tip-up frames, which mount under the trigger guard to add red or green laser aiming without altering the fixed-barrel design. This simplicity contributes to durability in humid environments, as the absence of a reciprocating slide reduces exposure to moisture and corrosion compared to traditional semi-automatics.^[19]

References

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Jo-Lo-Ar Pistol - Triple K - Live Store
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The genesis of this new design was made possible by three factors. The first was Rollin White's 1855 patent for a cylinder that featured bored-through chambers.
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Smith & Wesson Model 1 – Their First Firearm - RevolverGuy.Com
Sep 6, 2025 · The cylinder is re-installed in reverse order and the tip up barrel is swung back down and the latch secured automatically when closed.
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Smith & Wesson Tip Up Revolvers - Model 1 and 1 1/2
The S&W tip up models were in production until 1869. The barrel is jointed to the frame at the front of the top strap and swung the tip up for loading.
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The Philadelphia Deringer – How It Links To History
Antique derringer pistols go by many names due to copyright dodging manufacturers, but the original design was the Philadelphia Deringer created by Henry ...
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[PDF] Joshua Stevens 1814–1907 James Taylor & W. B. Fay
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The tip-up barrel allows cartridges to be loaded and fired one at a time while keeping a full magazine in reserve. Variants of the 6.35 mm Steyr Model 1909.
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Arthritis Tips: How to Load & Unload Semi-Autos | NRA Family
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Today Beretta's Model 92 gets all the attention, but the company has not forgotten its roots and still offers a number of blowback-operated, sub-compact...<|control11|><|separator|>
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Rohm GmbH Rex-Merrill "Sportsman", Blue 9" Tip-Up Barrel Single ...
Rohm GmbH Rex-Merrill "Sportsman", Blue 9" Tip-Up Barrel Single-Shot Target Pistol, MFD Modern .22 LR. AUCTION: 14882156. SOLD FOR: $229.99. AUCTION CLOSED.
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Heizer Defense Pocket Pistol: A Look at the 4-in-1 Gun
To change barrels on the Pocket Pistol, push forward on the barrel latch and allow the barrel assembly to tip up. Check to make sure the barrel is unloaded ...
[47]
https://www.evike.com/products/104042/
[48]
NEW Taurus 22 Tuc "Tip Up Barrel .22 LR" - YouTube
Oct 17, 2024 · NEW Taurus 22 Tuc "Tip Up Barrel .22 LR" The Taurus 22 Tuc is built ... SPN Firearms•16K views · 10:44. Go to channel · Taurus 22TUC: How ...Missing: design | Show results with:design<|control11|><|separator|>
[49]
EAA Releases Tip Up Pistol by Girsan | An Official Journal Of The NRA
Mar 28, 2023 · The MC 14 T has a tip-up design, is compact, holds 13+1 rounds, is .380 ACP, and is designed for concealed carry, especially for those with ...
[50]
The Baby Berettas: A tale of tip up barrels - Guns.com
Mar 14, 2013 · They've been around now for almost seventy years—those little Beretta pocket pistols with the tip up barrels.
[51]
Gun Control Act of 1968 - Wikipedia
The Gun Control Act of 1968 (GCA or GCA68) is a U.S. federal law that regulates the firearms industry and firearms ownership.Missing: tip- | Show results with:tip-