Andro Corp Industries ACI-15 Halo 300 BLK 10" 30rd Pistol

The ACI-15 Halo is a 300 Blackout AR pistol built short on purpose. A 10" barrel is right in the window the cartridge was designed around: the powder burns fully in a short tube, so a 10" gun gives up very little velocity against a 16" one, unlike 5.56 which bleeds badly when it gets cut back. Add a suppressor and subsonic ammunition and the platform gets genuinely quiet, which is the whole reason 300 Blackout exists.

The barrel is nitride finished and threaded at the muzzle. Upper and lower are aluminum finished in black, with a Picatinny top rail running the length of the upper receiver. The handguard is M-LOK, so lights, sights and hand stops mount directly without bolting rail sections on first. Out back is an SBA3 brace on the receiver extension, which is what keeps this in the pistol category while still giving a point of contact to shoot from. The grip is a standard A2. Magazine capacity is thirty. The result is a compact, suppressor friendly package for home defense or a truck rack where a full length carbine is more gun than the space allows.