Gemtech GVAV Upper Receiver

Gemtech GVAV Upper Receiver: $839

Gemtech just introduced its new 5.56mm GVAC upper receiver group that has been tuned to significantly reduce the amount of gas blowback you’ll experience when shooting suppressed, thanks to its patented design. This Mil-Spec upper is constructed using 7075-T6 aluminum that has been Type III hard coat anodized and features index markings and M4 feed ramps.

The 16.10-inch 1:8 twist barrel is 5R rifled, nickel boron coated, and made from 4150CMV steel — threaded to 1/2×28 at the muzzle, of course. The gas tube is mid-length, and the low-profile gas block has been pinned for reliability. Speaking of reliability, the bolt is MPI, chrome lined, and constructed of Carpenter 158 steel. The carrier is 8620 steel and has a properly staked gas key and chrome firing pin. The Midwest Industries 15-inch free-float Combat handguard features seven-sided M-LOK slots and a continuous MIL-STD 1913 Picatinny top rail for freedom of optic and enabler placement, as well as integrated QD sling sockets. All attributes combined, this upper receiver is built to last. For more information, contact Gemtech; Tel.: (833) 350-9517; Web: www.gemtech.com