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The only major difference between the 601 and 602 is the switch from the original four grooves, right-hand 1:14-inch (1:355.6 mm or 64 calibers) rifling twist rate to the more common four grooves, right-hand 1:12-inch (1:304.8 mm or 54.8 calibers) twist. This was done as the original 1:14-inch twist rate to just stabilize the 55 grain bullet ...
Stoner was born in Gosport, Indiana, on November 22, 1922.He moved to Long Beach, California where he graduated from Long Beach Polytechnical High School.In 1939, after the Depression, there was not enough money for him to attend college, so he went to work as a machinist for Vega Aircraft Company, the forerunner of what became Lockheed Airplane Company (now the Lockheed Martin Corporation).
AR-15–style rifles are now available in a wide range of configurations and calibers from a large number of manufacturers. These configurations range from standard full-sizes rifles with 20-inch (51 cm) barrels, to short carbine-length models with 16-inch (41 cm) barrels, adjustable length stocks and optical sights, to long range target models ...
The early commercial SP-1 AR-15s used a pair of 0.250-inch (6.4 mm) diameter receiver push pins, identical to those found on the military rifles. In 1966 the company replaced the front pin with a paired nut and screw hinge using a 0.315-inch-diameter (8.0 mm) pin to prevent shooters from being able to change receivers with military rifles or ...
5.56×45mm NATO: Howa Machinery Company, Sterling Armaments Company: Semi-automatic rifle version of the AR-18. AR-100 AR-101 AR-102 AR-103 AR-104: 5.56×45mm NATO: ArmaLite, Elitool: AR-100 series [4] based on the AR-16 that used a self ejecting magazine device. [5] Used in development of Ultimax 100 LMG. AR-30, AR-30A1, AR-31
11.5 in. A1 1:12 No 4.5" Moderator or A1 639 Colt SMG: 2nd Short Ribbed S-1-3 A1 No Yes 9mm NATO 10 in. A1 w/ integral silencer: 1:10 No A2 Compensator 640: XM177 Commando: 2nd Generation Short Ribbed S-1-F A1 No No .223 REM 11.5 in. A1 1:12 No 4.5" Moderator or A1 645: M16A1E1: A1 Ribbed S-1-3 A2 Yes Yes 5.56 NATO 20 in. A2 1:7 Yes A2 ...
The AR-18. Armalite and ballot box was a political catchphrase used to define the strategy pursued by Irish republicans from 1981 up until the 1994 IRA ceasefire [1] in which Sinn Féin ceased its policies of election boycott and abstentionism and instead contested elections in Northern Ireland and the Republic of Ireland, while the Provisional Irish Republican Army (IRA) pursued an armed ...
The Barrett REC7 (designation stands for "reliability-enhanced carbine") [1] is an American firearm manufactured as a selective-fire fully-automatic and semi-automatic rifle by Barrett Firearms. It is an M4 carbine utilizing a short-stroke gas piston system and is available in either 5.56×45mm NATO or 6.8mm Remington SPC .