Sierra 316 5.56mm Semi-Automatic Rifle with Magpul M-LOK FDE Furniture

Caliber: 5.56 NATO / .223 Remington®
Action: Semi-automatic
Capacity: 30
Barrel length: 16″
Barrel material: Chrome moly vanadium
Barrel twist: 1:9″
Stock: 5-position M4 reinforced fiber
Upper receiver: Mil.-spec forged 7075 T6 aluminum flat top with M4 feed ramps
Lower receiver: Mil.-spec forged 7075 T6 aluminum
Handguard: Mid-length aluminum delta ring single heat shield
Flash hider: A2
Overall length: 36.375″ fully extended 32.625″ collapsed
Overall weight: 7 lbs.