AR-15 6.5 Grendel 20" Black Diamond Stainless Upper Assembly / Mlok / Tri

AR-15 6.5 Grendel 20" Black Diamond Stainless Upper Assembly / Mlok / Tri

AR-15 6.5 Grendel 20" Black Diamond Stainless Upper Assembly / Mlok / Tri

This drop-in upper will attach to virtually any standard Mil Spec AR-15 lower assembly. Works best with your standard 5.56 Mags. Moriarti's exclusive 416R Stainless Steel nitride coated diamond fluted double tone barrels, with 1 and 8" twist and rifle mlok free float handguards. The free float handguard reduces the chance of accuracy-reducing pressure. The flute cools the barrels faster and makes it lighter.

Barrel - 20" 416R stainless steel fluted heavy barrel, nitride coated with stainless diamond flutes.  Chambered in 6.5 Grendel Type 2. 1-8 rh twist. .750 under gas block. Threaded 5/8x24. M4 feedramps. Rifle gas system. Barrel is finished off by Triport Competition Muzzle Brake. 

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. Rifle length stainless steel gas tube.

Handguard - 15" rifle-length mlok free float rail. Made from aircraft quality aluminum and black hard coat anodized.  Rails may differ in design, based on stock availability, the same excellent quality. 

Does not come with BCG or Charging Handle. Can be purchased separately.  This upper uses a true 6.5 Grendel .136 depth bolt.