9mm with USA Flag Ejection Port Dust Cover
Mark your upper to designate the caliber with using a single lower with different uppers.
Fits AR-15/M4 Upper Receivers.
Laser EngravedMade In USA.
May occasionally have some variation in laser work.
Note: This will not work with a pistol bumper kit. / Laser work may vary in color due to white balance of image and different batches due to texture of coating on dust covers.