Gemtech GVAC Upper Receiver 5.56x45mm NATO 16.1-Inch Black

Description

The Gemtech GVAC upper receiver group is chambered for .223 Remington/5.56 NATO and built around a 16.1-inch barrel. It combines a mid-length GVAC direct-impingement gas system, 15-inch free-float M-LOK handguard, ETM flash hider and included bolt carrier group for range and suppressed shooting applications. A charging handle is not included.

Key Specifications

• The .223 Remington/5.56 NATO chambering supports the listed ammunition standard.
• The 16.1-inch barrel provides the specified length for a general-purpose upper receiver group.
• The 1:8 twist and 5R rifling are built into the barrel for the listed bore configuration.
• The 4150 CMV steel barrel uses an Armornite treatment for its specified surface finish.
• The mid-length GVAC direct-impingement gas system uses a pinned low-profile gas block.
• The 15-inch free-float M-LOK handguard provides accessory mounting space without contacting the barrel.
• The continuous MIL-STD 1913 Picatinny top rail supports compatible sight and accessory mounting.
• The 1/2×28 muzzle thread pattern accommodates compatible muzzle devices.
• The Gemtech ETM flash hider is the specified muzzle device.
• The bolt carrier group is included, while the charging handle is not.

This upper receiver group suits builders and shooters looking for a 5.56 NATO configuration with a free-float M-LOK handguard, mid-length gas system and included bolt carrier group. Its documented components keep the setup focused on practical rifle assembly and range use.