Gemtech 13833 GVAC Upper Receiver 5.56x45mm NATO 16.10 Black 15 MLOK Handguard ETM Flash Hider BCG Included

The GVAC system from Gemtech. Significantly reduce the amount of gas blowback youll experience wwhen shooting suppressed with its patented design. The reimagined barrel profile enhanced bolt carrier profile enhanced bolt carrier group and ETM muzzle device maximize peformance so nothing holds you back. Redefine suppressed shooting with the GVAC system. UPPER RECEIVER MilSpec with Indexing Marks and M4 Feed Ramps. 7075T6 Aluminum Type III Hard Coat Anodized BARREL 4150CMV Steel Stress Relieved Armornite Treated 1:8 Twist 5R Rifled GVAC Profile Nickle Boron Coated barrel Extension 12X28 TPI Muzzle Threads GAS SYSTEM Pinned LowPro GVAC Gas Block 4140CM Steel MidLength GVAC DirectImpingement MUZZLE DEVICE Gemtech ETM Flash Hider 4140CM Steel BOLT CARRIER GROUP Carpenter 158 steel bolt 8620 Steel Carrier MilSpec MP Tested MagPhos Finish Chrome Lined Properly staked Gas Key Enhanced reliability bolt carrier and chrome firing pin. HANDGUARD 15 Midwest Industries Combat MLOK FreeFloat Seven Sided MLOK hand guard. Continuous MILSTD 1913 Picatinny Top Rail Integrated QD sling sockets. Machined from 6061T6 Aluminum and Type III Hard Coat Anodized.