AR-15 SPR Build centered around a 16" Geissele cold hammer forged, heavy contour, chrome lined barrel with a 1-7 twist and 5.56 chamber. It has a Geissele gas block and tube and a Geissele MK4 handguard. The upper reciever is a BCM thermal fit and the lower reciever is Aero Precision. The bolt carrier group is Daniel Defense. Charging handle is mil-spec. Geissele lower parts kit with a geissele SSA-E trigger and KNS anti walk pins. Radian Talon ambidextrious safety. Vltor A5 Buffer system with their spring and 5.3oz buffer and a magpul DT-PR stock. It has 450-ish rounds through it and I'm selling it because I have too many others. It's a great shooter with 55 grain and 77 grain. I've been able to stretch out to 600 yards easily with it. Call or textREDACTED with any questions.