In 2013, Heizer Defense introduced the PS1 Pocket Shotgun, capable of firing a single .410 gauge or .45 Colt round.

Heizer is now enhancing their design to chamber the .223 Rem. cartridge. Known as the Heizer Defense PAR1 Pocket AR Pistol, this "iPhone-sized" pistol uses the same reliable stainless steel frame as the PS1 Shotgun.

Debuting this weekend at the 2014 NRA Show in Indianapolis, the PAR1 Pocket AR Pistol also features familiar controls from the PS1 design, as well as a storage compartment in its grip.

Availability of the PAR1 Pocket AR Pistol is slated for July 2014 at an expected retail price of $449. To see the pistol in person at the NRA Show, visit Heizer Defense at Booth #6274 or stay tuned for an exclusive video right here on GunsandAmmo.com.