The Glock 17 Gen4 introduces revolutionary design changes to the world's  most popular pistol. The modular backstrap design lets the user to adapt  the grip to hand size, and the frame surface exhibits the  scientifically-designed Gen4 rough textured technology. This model features  a dual-recoil spring assembly that substantially increases the life of the  system, and the enlarged reversible magazine catch easily accommodates  left- or right-handed operators. The G17 Gen4 retains the Glock accessory  rail for accessory attachment.       SPECIFICATIONS:  Mfg Item Num:       PG1757203     Category:           PISTOLS                         Type                :Pistol  Action              :Double  Caliber             :9mm Luger  Barrel Length       :4.48"  Capacity            :17+1  Safety              :Trigger/Firing Pin/Drop  Grips               :OD Green  Sight Configuration :Fixed  Weight              :32 oz  Frame Finish        :OD Green  Frame Material      :Polymer  Barrel Type         :Hexagonal Rifled  Slide Description   :Black  Case Type           :  Sight Style         :Fixed