M&P® 5.56 14.5" UPPER RECEIVER WITH GVAC™ AND BCG

WARNING: FOR USE ON PISTOLS OR ATF-REGISTERED NFA FIREARMS ONLY. Firearms utilizing this component may be restricted or illegal in states that have codified so-called 'assault weapon' bans or other similar statutes. Buyer is solely responsible for complying with all federal, state, and local laws. Please consult with local law enforcement or an attorney for further guidance.

Introducing the new GVAC system from Gemtech. Significantly reduce the amount of gas blowback you'll experience when shooting suppressed with its patented design. The re-imagined barrel profile, enhanced bolt carrier profile, enhanced bolt carrier group, and ETM muzzle device maximize performance, so nothing holds you back. Redefine suppressed shooting with the GVAC system. Fits any M&P15® and most AR-Style lowers.

• UPPER RECEIVER - Mil-Spec with Indexing Marks and M4 Feed Ramps. 7075-T6 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, 1/2X28 TPI Muzzle Threads
• GAS SYSTEM - Pinned Low-Pro GVAC™ Gas Block, 4140CM Steel, Mid-Length GVAC™, Direct-Impingement
• MUZZLE DEVICE - Gemtech ETM™ Flash Hider, 4140CM Steel
• BOLT CARRIER GROUP - Carpenter 158 steel bolt, 8620 Steel Carrier, Mil-Spec MP Tested, Mag-Phos Finish, Chrome Lined, Properly staked Gas Key, Enhanced reliability bolt carrier and chrome firing pin.
• HANDGUARD - 13.375” Midwest Industries Combat M-LOK® Free-Float Seven-Sided M-LOK® hand guard. Continuous MIL-STD 1913 Picatinny Top Rail, Integrated QD sling sockets. Machined from 6061-T6 Aluminum, and Type III Hard Coat Anodized.