ar 500

The AR-500 uses a rimless version of the Smith Wesson . tachipirina 500 500 caliber pistol bullet, . tachipirina 500 500 Auto Max This allows the bullet to feed from an AR-15-platform rifle The rounds are thicker yet shorter than 5 56 bullets, resulting in a shorter magazine The AR-500 uses a partially blocked magazine well with a straight five round magazine