The SP10 has been specifically designed and tested for our nation's most elite Special Operations warriors. The SP10's proprietary design of the upper receiver and handguard provides a rigid no-flex platform for repeatable extreme accuracy under any condition. The SP10 lower receiver offers full ambidextrous controls allowing effective efficient manipulation of the weapon from either side. The SP10 is the perfect large-frame AR platform for hunting competition or duty use. - Calibers: .308/ 1:11.25 - Specs: - Weight: 10.5lbs - Barrel: .308 18 5R 416 Stainless Steel - Receivers: IRMT Upper/SP10 Lower 7075-T6 billet - Handguard: 15 SP3R MLOK - Gas Block: Seekins Low Profile Adjustable Gas Block - Trigger: single stage set at 3lbs - Colors: Armorer Black - Finish: Black oxide coating