Upper Receiver Groups

Mil-Spec M4 Upper Receiver Assembly Geissele Reliability Enhanced Bolt Carrier Group Geissele Airborne Charging Handle, DDC Geissele SMR MK16, DDC, 9.3" Geissele 5.56MM 10.3",GOV profile, 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 Super 42 Braided Wire Buffer Spring and H3 Buffer Combo INCLUDED! ...

This upper receiver group is a Complete 11.5" variant of the Geissele URG-I. NFA DISCLAIMER/WARNING: This item does not meet the 16" minimum barrel length requirement, and requires registration and a tax stamp with the Bureau of Alcohol, Tobacco, Firearms and Explosives (BATFE) when assembled into a complete rifle. Additional state and local restrictions may apply. It is the sole responsibility of the buyer to comply with any and all applicable laws ...

SPECS: Mil-Spec M4 Upper Receiver AssemblyGeissele Reliability Enhanced Bolt Carrier GroupGeissele Airborne Charging Handle, DDCGeissele SMR MK16, DDC, 13.5"Geissele 5.56MM 14.5" GOV profile, CHF, Chrome Lined, ML Gas, BarrelGeissele Super Gas Block .750 Low-Profile Gas Block, Pinned (Bombproof Installation)SureFire SF4P 4 Prong Flash Hider, Pinned & WeldedSuper 42 Braided Wire Buffer Spring and H1 Buffer Combo INCLUDED! ...