SHOTGUNS (United States)
HIGH STANDARD M10A
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Nationality: US Weapon Type: Bullpup Semi Automatic Shotgun Caliber: 2 3/4" Magnum 12 Gauge (18.5 x 70 mmR) Muzzle Velocity: 1330 fps Length: 68.80 cm Weight: 3.60 kg (Flashlight, Batteries and Sling) Type of Fire: Semi Automatic Rate of Fire: 15 rpm Feed Device: 5 Round tubular Magazine Feed Device Weight: : 0.40 kg Load Time: 5 seconds RANGE Point Blank C(9+) M(12+) L(14+) Ex(18+) 2 m. 20 m. 45 m. 65 m. 90 m. Damage DM: +3 +2 +1 - -2 Penetration: 9 Recoil: - Failure: - NOTE: The receiver and portion of the barrel are covered by a black, thermomolded, non-reflective, fiberglass-reinforced nylon. This material can resist heat up to 600oF and is impervious to most chemicals. The upper portion of the cover forms an integral carrying handle and houses a two-cell flashlight. The integral flashlight is primarily employed as a night sighting device. The light beam is zeroed to center the shot pattern at 32 meters. Patent applied for 8 July 1968, granted 10 May 1970. Marketed as Model 10, Series A, Police Shotgun. |
HIGH STANDARD M10B
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Nationality: US Weapon Type: Bullpup Semi Automatic Shotgun Caliber: 2 3/4" Magnum 12 Gauge (18.5 x 70 mmR) Muzzle Velocity: 1330 fps Length: 68.60 cm Weight (with Flashlight, Batteries and Sling): 4.40 kg (without Flashlight, Batteries and Sling): 3.90 kg (with Flashlight, Batteries, Sling and Choate Magazine Extension): 4.53 kg (without Flashlight, Batteries, Sling and Choate Magazine Extension): 4.03 kg Type of Fire: Semi Automatic Rate of Fire: 15 rpm Feed Device (Without Magazine Extension): 5 Round Tubular Magazine (With Magazine Extension): 7 Round Tubular Magazine Feed Device Weight: : 5: 0.40 kg, 7: 0.56 kg Load Time: 5 seconds RANGE Point Blank C(9+) M(12+) L(14+) Ex(18+) 2 m. 20 m. 45 m. 65 m. 90 m. Damage DM: +3 +2 +1 - -2 Penetration: 9 Recoil: - Failure: - NOTE: The receiver and portion of the barrel are covered by a black, thermomolded, non-reflective, fiberglass-reinforced nylon. This material can resist heat up to 600F and is impervious to most chemicals. Features a removable flashlight, a folding front sight and a folding carrying handle. The flashlight is a two-cell, aluminum, rugged-type flashlight, produced by Kel-lite Industries. It is attached to the left side of the sight by a thumbscrew and twin guidepins. The light beam is not zeroed at any range. Announced August 1970. Marketed as Model 10, Series B, Police Shotgun. Garth Choate (of Choate Machine and Tool Company) designed and produced a magazine extension, that some felt the M10B should have had from the factory. It was a tubular extension that replaced the factory tubular magazine. It was of a high quality and produced to high standards of manufacture. |
ATCHISSON ASSAULT SHOTGUN (1972 Prototype)
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Nationality: US Weapon Type: Assault Shotgun Caliber: 2 3/4" Magnum 12 Gauge (18.5 x 70 mmR) Muzzle Velocity: 1330 fps Length: 99.10 cm Weight: 5.20 kg Type of Fire: Selective; Semi Automatic or Full Automatic Rate of Fire (Semi Automatic): 45 rpm (Automatic): 90 rpm (Cyclic): 360 rpm Feed Device: 5 Round Magazine or 20 Round Drum Magazine Weight: : 5: 0.60 kg, 20: 2.10 kg Load Time: 3 seconds RANGE Point Blank C(9+) M(12+) L(14+) Ex(18+) 2 m. 20 m. 45 m. 65 m. 90 m. Damage DM: +3 +2 +1 - -2 Penetration: 9 Recoil: +2 Failure: 11+ NOTE: Designed and built by Maxwell G. Atchisson in 1972. This prototype weapon, which was a handmade, tool-room test platform, it gave birth to an entirely new class of military weapon, the assault shotgun. By using some M16 rifle components, in order to reduce development costs and to facilitate ease of fabrication, the Atchisson has nearly the same dimensions and configuration as the M16 rifle. For maximum effectiveness 00 buckshot should be used, but either #4 buckshot or 1 ounce slug can be used equally well. Of a simple design, its barrel screwed into a long, tubular receiver which housed the bolt and the recoil spring. A Model 1918 BAR trigger mechanism, equipped with a Thompson Submachine Gun pistol grip was used as the trigger assembly. |
ATCHISSON ASSAULT SHOTGUN (1984 Korean & US Production Version)
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Nationality: US and Korean Weapon Type: Assault Shotgun Caliber: 2 3/4" Magnum 12 Gauge (18.5 x 70 mmR) Muzzle Velocity: 1330 fps Length: 99.10 cm Weight (US): 5.45 kg (Korean): 5.68 kg Type of Fire: Selective; Semi Automatic or Full Automatic Rate of Fire (Semi Automatic): 45 rpm (Automatic): 90 rpm (Cyclic): 360 rpm Feed Device: 7 Round Magazine or 20 Round Drum Magazine Weight: : 7: 0.84 kg, 20: 2.10 kg Load Time: 3 seconds RANGE Point Blank C(9+) M(12+) L(14+) Ex(18+) 2 m. 20 m. 45 m. 65 m. 90 m. Damage DM: +3 +2 +1 - -2 Penetration: 9 Recoil: +2 Failure: 11+ NOTE: Between the years of 1973 and 1979 Maxwell Atchisson designed an improved version of his 1972 prototype. With many improvements to the original prototype, most visibly being the entire mechanism being closely encased in twin stock halves forming a clamshell arrangement. The production clamshell was made out of glass-reinforced Zytel, the same plastic used on the M16A2 rifle. Production was to be in the US and Korea (by Daewoo). The pre-1984 version was produced to the 1981 design specs, while the 1984 version had some improvements, most notable the addition to mount either an M6 or M7 bayonet (as used on the M16 family of rifles) and the removal of the checker non-slip pattern from the fore-arm of the clamshell. Plans where drawn for an ambidextrous selector lever, to be introduced in a later production model. All production Atchisson's had the ability to launch 22 mm NATO standard rifle grenades, by the inclusion of integral gas check grooves near the muzzle. The square cut gas check grooves can be utilized as mounting surfaces for auxiliary muzzle attachments such as choke tubes, a shot spreader and flash & sound suppressors. There are 2 magazines designed and proven for the Atchisson at the time. The 7 round, single-column, single-feed box magazine and the 20 round assault drum. In Korea a 3rd magazine was under development, being a 10 to 12 round, staggered, double-column, single-feed box magazine. The following figures might represent what a 10 or 12 round fully loaded magazine might have weighted, 10 round magazine: 1.20 kg, 12 round magazine: 1.44 kg. |
ITHACA MAG-10 "Roadblocker"
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Nationality: US Weapon Type: Semi Automatic Shotgun Caliber: 3 1/2" Magnum 10 Gauge (19.7 x 89 mmR) Muzzle Velocity: 1112 fps Length: 106.40 cm Weight: 4.87 kg Type of Fire: Semi Automatic Rate of Fire: 16 rpm Feed Device: 3 Round Tubular Magazine Magazine Weight: : 0.27 kg Load Time: 3 seconds RANGE Point Blank C(9+) M(12+) L(14+) Ex(18+) 2 m. 20 m. 45 m. 65 m. 90 m. Damage DM: +3 +2 +1 - -2 Penetration: 7 Recoil: - Failure: - NOTE: Introduced in 1977 with production lasting until 1986 when the model was removed from the production. The "Roadblocker" MAG-10 was designed to give law enforcement the ability to deal effectively with criminals in vehicles. In military terms, it is very limited in its usefulness, due to its heavy weight and limited ammunition supply. |
REMINGTON 870P and 870 RIOT
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Nationality: US Weapon Type: Pump Action Shotgun Caliber: 2 3/4" Magnum 12 Gauge (18.5 x 70 mmR) Muzzle Velocity: 1175 fps Length (Folded): 77.00 cm (Un-Folded): 102.00 cm Weight: 3.40 kg Type of Fire: Manual Pump Action Rate of Fire: 21 rpm Feed Device: 7 Round Tubular Magazine Feed Device Weight: 0.45 kg Load Time: 4 seconds RANGE Point Blank C(9+) M(12+) L(14+) Ex(18+) 2 m. 20 m. 45 m. 65 m. 90 m. Damage DM: +3 +2 +1 - -2 Penetration: 8 Recoil: - Failure: - NOTE: Developed from the full stocked 870. The 870P was developed for military and law enforcement agencies, with a folding stock, pistol grip and an extended tubular magazine. The 870 Riot was developed for law enforcement agencies, folding stock, pistol grip and stand tubular magazine. It allows an individual to egress from a vehicle more easily than with the full stocked version. The pistol grip is made of tough cycolac plastic and is attached to a one-piece, sheet steel, twin rail folding stock. |