B&T GHM9 9mm, 6.9″ Threaded Barrel, Black, Tri-Lug, 33rd The GHM9 Gen 2 provides greater flexibility and modularity to the operator. The GHM9 Gen 2 accepts all APC9 PRO lower receivers, and allows the operator to change out barrels, handguards, and stocks. Also accepts Glock Magazines Action : Semi-automatic Barrel Length : 6.9″ Caliber : [...]