B&T APC9K Pro 9mm, 4.3″ Threaded Barrel, Tan, Optic Ready, 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. Action : Semi-Auto Caliber : 9mm Luger Barrel Length : 4.30″ Capacity : 30+1 Safety : Ambidextrous Grips : [...]