Gemtech GVAC, Complete Upper Reciver Group, 223 Remington/556 NATO, 16.1" Barrel, 1:8 Twist, Gemtech ETM Flash Hider, Pinned Low Pro GVAC Gas Block, Mid Length Gas System, Anodized Finish, Black, MLOK Handguard, Fits AR-15, Includes Bolt Carrier Group, BLEM (Damaged Case, Possible Water Damage) 13833
Model: GVAC
Caliber: 223 Remington
Caliber2: 556NATO
Barrel Type: 1:8
Barrel Length: 16.1"
Finish/Color: Anodized
Fit: AR-15
Type: Upper
Manufacturer: Gemtech
Model: GVAC
Mfg Number: 13833
Caliber: This upper receiver group is designed to work with both .223 Remington and 5.56x45mm NATO ammunition. These calibers are commonly used for AR-15 rifles.
Barrel Length: The upper receiver group features a 16.1-inch barrel. The barrel length affects the overall length and handling characteristics of the firearm.
Twist Rate: The barrel has a 1:8 twist rate. The twist rate determines how quickly the bullet rotates as it travels down the barrel, affecting its stability and accuracy. A 1:8 twist rate is versatile and can stabilize a wide range of bullet weights.
Gemtech ETM Flash Hider: The upper receiver group includes a Gemtech ETM flash hider. Flash hiders are muzzle devices designed to reduce the visible flash and muzzle signature when firing, enhancing the shooter's visibility during rapid-fire or low-light conditions.
Pinned: The term "pinned" indicates that the flash hider is permanently attached to the barrel. This is a common configuration to meet legal length requirements for rifles with shorter barrels while providing the benefits of a longer barrel.
Gemtech: Gemtech is a well-known manufacturer of firearm suppressors (silencers) and related accessories, including flash hiders.
The "complete upper receiver group" typically includes the upper receiver, barrel, handguard, and associated components necessary to assemble the upper portion of an AR-15-style rifle. It's important to note that the lower receiver, which contains the firearm's serial number and is considered the regulated part of the firearm, is not included.