DPMS LR-308/SR-25 Compatible Magazine; Non-Ambidextrous Charging Handle; 3 Anti-Rotation QD Sling Points; ATC Muzzle Device; M4 Feed Ramps; Adjustable Gas Block; Rifle Length Gas System; SP10 Bolt Carrier Group; Seekins iRMT-3 308 Upper, SP 308 Lower; 15″ Seekins SP3R M-LOK Hand guard