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Gemtech GVAC Complete Upper Receiver Group – 5.56 NATO – 16.1"
The Gemtech GVAC Upper Receiver Group (13833) is a specialized, suppressor-optimized AR-15 upper designed to solve the common issues associated with running a silencer, such as excessive blowback and increased cyclic rates. The heart of this system is the GVAC barrel and gas system, which features a unique gas block design and a tuned port to significantly reduce the amount of gas directed back toward the shooter’s face. This results in a cleaner, more comfortable shooting experience and a firearm that stays cleaner longer during suppressed fire.
The 16.1-inch barrel is machined from 4150 CMV steel and finished in a durable Black Nitride for superior corrosion resistance and longevity. It comes equipped with an ETI-Plated Bolt Carrier Group (BCG), which provides extreme lubricity and ease of cleaning—carbon simply wipes off. Surrounding the barrel is a lightweight, M-LOK compatible handguard with a full-length top rail for optics and accessories. To complete the suppressor-ready package, the upper includes the Gemtech Blast Shield, which protects the threads and directs blast forward when a suppressor is not attached. This is the definitive upper for shooters who want a "plug-and-play" suppressed solution without the need for adjustable gas blocks or complex tuning.
Includes: Complete Upper Receiver, ETI-Plated BCG, Charging Handle, and Gemtech Blast Shield muzzle device.
Key Features
- Suppressor Optimized: Proprietary GVAC gas system reduces "gas-to-face" and manages backpressure for a smoother suppressed cycle.
- ETI-Plated BCG: Features an advanced coating that enhances reliability and makes cleaning carbon buildup effortless.
- Gemtech Blast Shield: Directs muzzle blast forward and protects the muzzle threads; compatible with Gemtech suppressors.
- Nitride 4150 CMV Barrel: Heavy-duty, high-accuracy barrel designed to withstand the heat and pressure of suppressed use.
- Full-Length M-LOK Rail: Provides ample space for lights, lasers, and grips with a continuous Picatinny top rail for optics.
- Ready to Run: Includes all necessary components to pin onto your existing AR-15 lower receiver.
Product Specifications
- Brand: Gemtech
- Model: GVAC Upper Receiver Group
- Caliber: 5.56 NATO
- Barrel Length: 16.1 Inches
- Barrel Material: 4150 Chrome Moly Vanadium
- Finish: Black Nitride
- BCG Coating: ETI-Plate
- Handguard: M-LOK Free Float
- Muzzle Device: Gemtech Blast Shield
- Weight: 4.5 lbs
- MPN: 13833
- UPC: 022188894615
