YHM Mini QD Muzzle Brake, 9MM, 1/2"-28, Black, Includes Shim Kit YHM-3109-1MB-28A Available to order on-line. Ships in 5-14 days $99.95
YHM Dust Cover, 9MM, Fits AR Rifles, Black, Includes: Dust Cover, Rod, and Retaining Clip Spring YHM-111-9 Available to order on-line. Ships in 5-14 days $14.00
YHM Mini QD Muzzle Brake, 9MM, 5/8"-24, Black, Includes Shim Kit YHM-3109-1MB-24A Available to order on-line. Ships in 5-14 days $99.95