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16" Double Lapped, Chrome-Lined Barrel
Tactical Two Stage Trigger
Railed Gas Block
When the rifle application calls for compact over-all length without sacrificing close quarters accuracy and platform flexibility for sight selections, the ArmaLite M-15 A4 Carbine is the Special Purpose Rifle model to fulfill the requirements. The ArmaLite-designed mid-length handguard and gas tube technology provides an optimal gas pulse to power the 16" system, so reliablity is never an issue. The M-15 A4 barrel is double-lapped and chrome-lined with a 1 in 9" twist. The flattop receiver and gas block are both topped with a mil-spec Picatinny mounting rail. The tactical trigger is a two-stage design with a 3.5 pound first stage and a 5 to 6 pound second stage. A 30-round magazine comes standard.