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 1/2x28 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: 1/2x28
- 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
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