Ruger AC556F

From Wikipedia, the free encyclopedia

Ruger MP9
Ruger AC-556F
Type	submachine gun
Place of origin	USA
Service history
Used by	USA
Wars	??
Production history
Designed	(??)
Produced	(??)
Number built	??
Variants	AC-556
Specifications
Weight	2,9 kg empty
Length	943 mm (851 / 603 mm for AC-556F)
Cartridge	.223
Caliber	.223
Action	selective fire.
Rate of fire	750 rounds per minute (for AC-556 only)
Muzzle velocity	?
Effective range	??
Feed system	5-40(box) Mag and 90 snail-drum Mag.

Bill Ruger, was one of leading US arms designers of post-WW2 period, he began development of a new semi-automatic rifle circa 1970. The rifle was made for either civilian and para-military use; it was dupilcated after current US issue military rifle, the M14, and was chambered for relatively new 5.56x45mm (.223 Remington) ammunition. Since its commercial introduction in 1973 the Ruger Mini-14 rifle found wide proved among both civilian shooters and a variety of police and security forces around the globe. For government users, Ruger produced two specialized versions of the basic rifle - the Mini-14GB and AC-556. The former is still a semi-automatic only weapon, but is fitted with protected front sight, flash-hider and a bayonet lug. The latter is a selective-fired firearm, and thus can be classified as a true assault rifle. All firearms in the Mini-14 family share same basic design, although there are differences in certain parts; for example, AC-556 rifles had slightly longer receiver, which hosts the fire mode switch at its rear part. The first major modification to the Mini-14 family appeared in 1978, when Ruger introduced an all-stainless version of the basic rifle. Until now, all Ruger Mini-14 rifles are available either in carbon or stainless steel versions. In around 1982 Ruger introduced its next civilian modification of the Mini-14, known as the "Ranch" rifle. This version was optimized for use with telescope sight, and thus was produced with integral scope bases on receiver. Ejection mechanism was changed to eject spent cases to the right side, clear of the scope, and rear sight was fitted on the folding base. In 1986, Ruger introduced a Mini-30 rifle, which was same basic weapon but adapted to 7,62x39 M43 ammunition of Russian origin. The last change in the Mini-14 line-up appeared as late as in 2005, when Ruger company introduced a new version of the Mini-14, which incorporated integral scope bases of the earlier "Ranch" rifles with protected front sight and non-folding diopter rear sight, which has smaller mount that of previous rifles. In general, Mini-14 rifles are known for their good dependability and durability. Accuracy is usually quoted as somewhat inferior to AR-15 (M16-type weapons), which are very popular in USA; however, Mini-14 rifles are accurate enough for most purposes, and are excellent firearms for hunting, home defense, and general shooting.