DELTA GEN.2 X Arex Delta X 9mm, Optic Ready (Plate Kit included), Striker Fired, 4" Barrel, interchangeable Back straps, FDE Frame, Black Nitride Slide, Mags 1x 17+1 & x 19+1 TECHNICAL SPECIFICATION Length 183 mm // 7.2"Height 131 mm // 5.1"Width 30 mm // 1.18"Barrel length 102 mm // 4.0"Weight w/o mag 541 g // 19.0 ozWeight w mag 625 g // 22.0 oz OR Weight w/o mag 510 g // 17.9 ozOR Weight w mag 594 g // 20.9 oz