Specifications: Model: SPC A3 - 16? 2019 Optic Ready Caliber: 5.56 mm Type: MIL-SPEC Rifle Operating System: Gas Operated Magazine Capacity: 30 Round Magazine Firing Modes: Safe/Semi-Automatic Length - Extended: 36" (91.44cm) Length - Collapsed: 33.25" (84.55cm) Barrel Length: 16" (40.64 cm) Barrel Weight: 6 lbs (2 kg) Sight Radius: 20" (50.8cm) Safety: Manual safety lever Muzzle Device: A2 Flash Suppressor Rifling: 1 turn in 7" right hand twist Trigger: Standard MIL-SPEC trigger group Stock: M4 style 6 position stock Forend: TROY 13" M-LOK BattleRail (33.02cm) Pistol Grip: A2 Pistol Rear Sight: Optic Ready Front Sight: Optic Ready Material: Aircraft Grade 6061-T6 Aluminum Finish : Mil-Spec Hard Coat Anodized