AR Type, Semi-automatic
|Manufacturer:||Miller Precision Arms|
|Caliber:||223 Remington (5.56×45mm NATO)|
|Rate of twist:||1 in 7"|
|Trigger:||Geissele SSA 2-stage|
|Trigger pull:||2.5 - 4.5 lbs.|
|Magazine type:||Detachable Box|
The MPA 556 is a SPR style rifle with several improvements. The SPR, used by the Special Operations Forces of both the U.S. Army and U.S. Navy, is a heavily modified light designated marksman variation of the AR-15/M16 line of infantry weapons, and is chambered for NATO standard 5.56x45mm ammunition. Precision machined match set billet upper & lower receiver.Ultra match barrel, precision machined and chambered from Kreiger barrel blanks. Hammerhead muzzle brake. Lewis Machine Tool (LMT) Sopmod. Upper and lower precision machined from 7075-T651 premium billet material. Tightest bore tolerances in the industry. Forward assist. 1913 style flat top rail. MPA precision bolt carrier group. MPA precision extractor. Geissele two stage trigger group. MPA adjustable gas block. Precision Reflex free float carbon fiber hand guard. Integral trigger guard is fully machined.