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6MM ARC
The 6 mm Advanced Rifle Cartridge (6×38mm), or 6mm ARC for short, is a 6mm (.243) caliber full-power rifle cartridge introduced by Hornady in 2020, as a low-recoil, high-accuracy long-range cartridge designed for the AR-15 platform. All you need is a new barrel, magazine and bolt to convert AR-15 5.56/.223 rifle into the 6mm ARC. The 6mm ARC utilizes the same bolt head size as the 6.5mm Grendel, and 6.5mm Grendel AR-magazines have also been used successfully with the 6mm ARC.
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The Moriarti Armaments AR-15 12″ 6MM ARC Match Grade Gunner Upper Assembly / Mlok comes complete with a MATCH GRADE Stainless Steel 416R nitride coated Barrel, low profile Steel .750 gas block and a Stainless Steel carbine Gas tube. Upper is finished off with a Slim Free F..The Moriarti Armaments AR-15 12″ 6MM ARC Match Grade Gunner&nb...$449.95$699.95
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The Moriarti Armaments AR-15 AR-15 18″ 6MM ARC Match Grade Stainless Upper Assembly / Rocket Man comes complete with a MATCH GRADE Stainless Steel 416R Barrel, low profile steel .750 steel gas block and a Stainless Steel Gas tube. Upper is finished off with a Free Float 17"..The Moriarti Armaments AR-15 AR-15 18″ 6MM ARC Match Grad...$399.95$599.95 -
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 Rif..The Moriarti Armaments AR-15 20″ 6MM ARC Hexagon Fluted S...$299.95$549.95 -
The Moriarti Armaments AR-15 21″ 6MM ARC Match Grade Stainless Nitride Upper Assembly / Nitride Finish / Rocket Man comes complete with a MATCH GRADE Stainless Steel 416R Barrel with Nitride QPQ finish from Odin Works, low profile Steel .875 steel gas block and a Stainless Steel..The Moriarti Armaments AR-15 21″ 6MM ARC Match Grade Stainless...$499.95$699.95