A SECRET WEAPON FOR 10MM GLOCK

The AAC-SD is outfitted by using a twenty- or 22-inch hefty barrel (based on caliber), injecting Yet another element of stiffness to the System and avoiding barrel whip when it heats up. The barrel and handguard are mounted to your front in the receiver familiarly. The barrel slides into the receiver indexing over a pin, then a threaded barrel nut