Features: Interchangeable back strap in 2 sizes (small and large) Blackout rear and phosphorous front white dot sight Micro red-dot interface with co-witness feature Reversible magazine release Accessory under-barrel rail Tungsten Cerakote over nitride slide finish Match grade nitride coated barrel Small parts and internal components nitride or high-wear nickel-coated Comes with two magazines: one 12rd + optional finger rest base plate and one 15rd with extended baseplate Also included are the toolbox users manual and a concealed carry holster with reversible clips for IWB and OWB use Specifications: CALIBER: 9mm Luger CAPACITY: 12/15+1 rds. BARREL: 3.60? OVERALL: 6.70? HEIGHT: 4.6? WIDTH: 1.45? WEIGHT: 24.78 oz unloaded