6mm ARC AR-15 Parts

Hornady’s new 6mm Advanced Rifle Cartridge excels at long-range shooting, with very mild recoil.This new caliber is great for building an AR-15 focused on hitting far-off targets, while retaining enough muzzle energy to make a serious impact. READ MORE

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Hornady’s new 6mm Advanced Rifle Cartridge excels at long-range shooting, with very mild recoil. This new caliber is great for building an AR-15 focused on hitting far-off targets, while retaining enough muzzle energy to make a serious impact.

If you’re looking at a caliber swap, 6.5 Grendel Type II bolts work for the barrels, and 6.5 Grendel magazines also work best in the lower receiver.

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