AR-15 6.5 Grendel 20" stainless spiral fluted upper assembly /BCG and CH/Mlok

AR-15 6.5 Grendel 20" stainless spiral fluted upper assembly /BCG and CH/Mlok

AR-15 6.5 Grendel 20" stainless fluted upper assembly complete with BCG and CH . 

AR-15 6.5 Grendel 20" stainless steel upper assembly includes:

Barrel - 20" stainless fluted 416R heavy barrel. Hardened to 26-32 rc and stress relieved. Chambered in 6.5 Grendel Type II. 1-8 rh twist. Button rifled. .750 under gas block. Spiral Fluted. M4 feedramps. Rifle gas system.

A3 flat top upper receiver - made from certified 7075-T6 aluminum forgings. Black hardcoat anodized to gov. specs. Forward assist and dust cover installed. M4 feedramps.

Gas system - .750 low profile gas block made from steel for most durability and performance. Rifle length  stainless steel gas tube.

Handguards - free floating slim mlok rail. Made from aircraft quality aluminum and black hardcoat anodized. Also available with a quadrail option as shown on picture.

BCG: 6.5 Grendel Type II, included

Charging Handle: AR-15 standard, milspec