Attachment Method: M-LOK – Product Line: AR-10 – Product Category: Tactical – Caliber: 6.5 Grendel – Barrel: HB SST Triple Lapped – Barrel Length: 20 – Muzzle Device: Flash Suppressing Compensator – Front Sight Base: Full-Length MIL-STD 1913 Rail – Handguard: 15 Free-Floating Tactical – Stock: MBA-1 Light Weight Precision Adjustable – Upper Receiver: Forged Flat-Top with MIL-STD 1913 Rail 7075-T6 Aluminum – Lower Receiver: Forged 7075-T6 Aluminum – Safety: Ambidextrous – Trigger: Two Stage Precision – Charging Handle: Raptor Ambidextrous – Finish: Hard Anodized Aluminum Manganese Phosphated Steel – Length: 42.3 Collapsed / 43.3 Extended – Included: One 25-Round Magpul PMAG Magpul MBUS Owner’s Manual