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ArmaLite AR-15 with the charging handle located on top of the upper receiver, protected within the carrying handle and a 25-round magazine. 1973 Colt AR-15 SP1 rifle with "slab side" lower receiver (lacking raised boss around magazine release button) and original Colt 20-round magazine.
The Close Quarter Battle Receiver (CQBR) [5] is a replacement upper receiver for the M4A1 carbine developed by the US Navy.. The CQBR features a 10.3 in (262 mm) length barrel (similar to the Colt Commando short-barreled M16 variants of the past) which makes the weapon significantly more compact, thus making it easier to use in, and around, vehicles and in tight, confined spaces.
SIG designed the upper receiver to be compatible with standard AR-15 and M16 lower receivers [10] [12] with the help of an adapter. [15] An integrally suppressed upper receiver group based on the MCX was selected by USSOCOM for the SURG (Suppressed Upper Receiver Group) contract in July 2018. These suppressed uppers would be paired with ...
The CAR-15 name was an attempt to re-associate the AR-15 name with Colt, since the AR initially stood for "Armalite Rifle" the original manufacturer of the Armalite AR-15. Colt later abandoned the CAR-15 concept, but continued to make carbine variations, using the "M16" brand for select-fire models and the "Colt AR-15" brand for semi-automatic ...
AM 55: Original version as adopted by the Swiss Army as "7,5mm Stgw. 57". SG 510-1: Export model of the AM 55 chambered in 7.62×51mm NATO. [5] SG 510-2: Lightened variant of the SG 510-1. [6] SG 510-3: 7.62×39mm variant with shorter barrel, receiver and barrel jacket. This was produced in small numbers as a prototype and submitted to the ...
A gear train or gear set is a machine element of a mechanical system formed by mounting two or more gears on a frame such that the teeth of the gears engage.. Gear teeth are designed to ensure the pitch circles of engaging gears roll on each other without slipping, providing a smooth transmission of rotation from one gear to the next. [2]
In fastpitch and modified pitch, a margin of 15 runs after 3 innings, 10 after 4, or 7 after 5 is sufficient for the leading team to be declared the winner. In slow pitch, the margin is 20 runs after 4 innings or 15 after 5 innings. [20] In the NCAA, the required margin after 5 innings is 8 runs. The mercy rule takes effect at the end of an inning.
On 15 April 2004 Raytheon Company was awarded a $64.8 million contract by the Jordan armed forces to upgrade three tank battalions. [ 112 ] Raytheon has been working with Jordan's King Abdullah II Design and Development Bureau (KADDB) on its Phoenix Level 1 Independent Fire Control System (IFCS) upgrade and Level 2 Lethality upgrade efforts for ...