The Stag Arms Model 4 is made to mil-spec standards and comes standard with a removable A3 carry handle with integrated sight. The Model 4 has a 20" chrome-lined 4140 steel heavy profile barrel with manganese phosphate coating. The upper receiver is forged mil-spec 7075 T6 aluminum with type-3 hardcoat anodizing and a picatinny rail on top. The mil-spec A2 synthetic stock features a trapdoor for storage. The mil-spec single stage trigger has a non-adjustable 5 to 8 pound trigger pull and the handguard is thermoplastic with double heat shields. Additional features include an A2-style plastic grip, a mil-spec charging handle, an F-marked A2 front sight, a side sling swivel, and a bayonet lug. Weight: 8.5 lbs.