AR-15 20″ 6MM ARC Hexagon Fluted Stainless Steel Upper Assembly / Mlok

AR-15 20″ 6MM ARC Hexagon Fluted Stainless Steel Upper Assembly / Mlok

The Moriarti Armaments AR-15 20″ 6MM ARC Hexagon Fluted Stainless Steel Upper Assembly / Mlok comes complete with a MATCH GRADE Stainless Steel 416R Barrel, low profile Steel .750 Gas Block with Nitride Finish and a Stainless Steel Rifle Gas tube. Upper is finished off with a Rifle Length Free Float MLOK Handguard. 

The 6mm ARC emerges as a superior alternative for the AR-15 platform, offering enhanced ballistics and greater velocity compared to the 6.5 Grendel.

• 20” length Barrel chambered in 6MM ARC 
  
• Hexagon Fluting
• 1:7.8 Twist Rate
• M4 Feed ramps
• 416R Heat Treated Stainless Steel
• HAND LAPPED – MATCH GRADE
• Rifle-Length Gas System
• .750 Gas Block Acceptance
• Barrel thread for Flash Hider or Muzzle break 5/8x24

Handguards - 15" free floating Mlok rail. Made from aircraft quality aluminum and black hardcoat anodized.

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 - low profile steel 750 gas block. Rifle length gas tube.

Upper Assembly does not come with BCG and CH. Available on top of page. Images may not be an exact representation of the product.