Quickly and easily convert your AR-15 lower for shooting the .300 AAC Blackout round. It offers reduced noise levels with sub-sonic ammo and devastating terminal performance for hunting or home defense. This flat-top A3 upper with 1913 Front sight base is optics and flip up sight (MBUS) ready. The 16” barrel provides a 1:7 twist rate for optimum accuracy. Carbine length gas system and handguard is highly maneuverable. It’s compatible with standard AR-15 lowers and magazines. Equipped with A2 style flash hider. Made in USA.
Note: This upper will accept both 300 Blackout and 300 Whisper Ammunition.