SDS Imports PX-9DTHFDE : PX-9 Duty Gen 3 Threaded (9mm, 4.69" threaded barrel, Semi-Auto/Striker-Fired, Sig 226 style 1 x 18RD & 1 x 20RD magazines, lockable case, loader, holster, changeable side panels & backstraps (S-M-L), extended mag well, fiber optic front sight (Glock Style), drift adjustable rear sight (Glock Style), RMR Cut with cover plate, mil spec rail, flat faced trigger with trigger safety, reversible mag catch, textured index points on frame, thread protector, IWB holster, owners manual and cleaning kit. - CALIBER 9MM - MAGAZINE (1) 18rd (1) 20rd SIG 226 Style - BARREL 4.7", 1/2x28 TPI - SLIDE Optic Cut RMR Mount - SIGHTS Front Fiber Optic, Fixed Rear - GRIPS Interchangeable Side Panels & Backstraps