ATI's ARcane Blackout, chambered in .300 AAC, will be available as a 16-inch carbine and an NFA restricted 10.5-inch SBR. Both models will feature a nitrocarb barrel with 1:7-inch RH twist and mil-spec 7075-T6 forged upper and lower receivers. This rifle will also have a mil-spec Carpenter 158 bolt/8620 carrier, Head Down 9-inch Provectus free float rail and low profile carbine length gas system. The ARcane Blackout has a Head Down PVX muzzle brake with 5/8 x 24 thread, a commercial spec M4 collapsible stock and type III hard coat anodized finish.
Benefits of the .300 AAC Blackout round include more muzzle energy than 5.56 NATO, availability of supersonic and subsonic ammunition, and no changes to the weapon required when switching from subsonic to supersonic ammo. In addition, the larger bullet provides more damage to the target, and it's easy to reload with commonly available 5.56mm brass.
The ARcane .300 Blackout has an MSRP of $999 and comes with a 30 round polymer magazine and hard case. It will be on display at the 2013 SHOT Show in Las Vegas in ATI's booth #16538.