B&T APC9K PRO 9mm, 4.5″ Threaded Barrel, Tri-Lug Adapter Included, 30rd The APC9 PRO features functional updates that include dual auto-folding, non-reciprocating charging handles, improved lower receiver ergonomics, a replaceable pistol grip, and M-LOK accessory slots Accessories : 1 Mag Action : Semi-automatic Barrel Length : 4.5″ Caliber : 9MM Capacity : 30 Rounds Color [...]