Description
Geissele URG-I Complete Upper
The Geissele URG-I Near Clone Upper Receiver with 11.5” cold hammer-forged, chrome-lined barrel; Geissele reliability enhanced BCG; Geissele stress-proof bolt; 10.5” SMR MK16 rail; carbine length gas system; Geissele super gas block; airborne charging handle; SureFire SF4P 4-prong flash hider; and black/desert dirt color.
Now for sale at Mister Guns is the Geissele URG-I Upper equipped with a GOV profile, CMV (Chrome Moly Vanadium), 1/7 twist barrel. Chambered in 5.56mm, this barrel is 11.5 inches long, cold-hammer-forged, chrome lined, and finished with manganese phosphate for unbeatable corrosion resistance and durability; it also comes with a SureFire SF4P, 4 prong flash hider muzzle device.
This Mil-Spec M4 Upper Receiver Assembly also features a carbine gas system that proves reliable in adverse conditions and is less ammo sensitive; a Geissele Super .750 low-profile, pinned gas block (Bombproof Installation); a Geissele reliability enhanced bolt carrier group (BCG); a DDC Geissele airborne charging handle; and a Geissele SMR MK16, DDC, 10.5″ rail.
The USASOC URGI Complete Upper comes with a Super 42 Braided Wire Buffer Spring as well as an H3 Buffer Combo included.









