Mil-Spec M4 Upper Receiver Assembly
Geissele Reliability Enhanced Bolt Carrier Group INCLUDED
Geissele Airborne Charging Handle, DDC INCLUDED
Geissele SMR MK16, DDC, 10.5"
Geissele 5.56MM 11.5", GOV profile, Cold Hammer Forged CHF, Chrome Lined, Carbine Gas, Mag Phos, ChromolyV, 1/7 Twist, Barrel
Geissele Super Gas Block .750 Low-Profile Gas Block, Pinned (Bombproof Installation)
SureFire SF4P 4 Prong Flash Hider INCLUDED
Super 42 Braided Wire Buffer Spring and H3 Buffer Combo INCLUDED