Gemtech GVAC Complete AR-15 Upper Receiver 5.56x45mm NATO 16.10in, BCG, ETM Flash Hider 13833

Product Description The Gemtech GVAC upper receiver group is engineered to enhance suppressed shooting by significantly reducing gas blowback through its patented GVAC design. This complete upper features a Mil-Spec 7075-T6 aluminum receiver with indexing marks and M4 feed ramps, paired with a stress-relieved, Armornite-treated 4150 CMV steel barrel. A mid-length, direct-impingement GVAC gas system with a pinned low-profile gas block helps optimize reliability and performance, while the included enhanced bolt carrier group and Gemtech ETM flash hider round out a purpose-built package for AR-platform builds and upgrades. The 15-inch Midwest Industries Combat free-float M-LOK handguard provides versatile mounting space with a continuous Picatinny top rail and integrated QD sling sockets. Product Highlights Patented GVAC system helps reduce gas blowback for a smoother suppressed shooting experience 16.10 inch 4150 CMV barrel with Armornite treatment, 1:8 twist, and 5R rifling for durability and accuracy Includes enhanced bolt carrier group with Carpenter 158 bolt, chrome-lined carrier, and properly staked gas key 15 inch Midwest Industries Combat free-float M-LOK handguard with MIL-STD-1913 Picatinny top rail and QD sling sockets Gemtech ETM flash hider with 1/2×28 muzzle threads for common 5.56 platform compatibility Specs Brand: Gemtech Manufacturer Part Number: 13833 UPC: 022188894615 Platform Fit: AR-Platform (AR-15 style) Caliber: 5.56x45mm NATO Barrel Length: 16.10 inch Barrel Material: 4150 CMV steel, stress relieved, Armornite treated Rifling: 5R Twist Rate: 1:8 Muzzle Threads: 1/2×28 Gas System: Mid-length GVAC, direct impingement; pinned low-profile GVAC gas block (4140 CM steel) Muzzle Device: Gemtech ETM flash hider (4140 CM steel) Upper Receiver: Mil-Spec with indexing marks and M4 feed ramps; 7075-T6 aluminum, Type III hard coat anodized Bolt Carrier Group: Carpenter 158 steel bolt; 8620 steel carrier; Mil-Spec MP tested; mag-phos finish; chrome lined; properly staked gas key; chrome firing pin Handguard: 15 inch Midwest Industries Combat M-LOK free-float, seven-sided M-LOK; continuous MIL-STD-1913 Picatinny top rail; integrated QD sling sockets; 6061-T6 aluminum, Type III hard coat anodized Color: Black Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the products manufacturer.