SPECIFICATIONS | Polymer Frame, Alloyed Forged Steel Barrel and Slide Rear Sight Firing Pin Block and Trigger Safety 3 size changeable back straps 3 size changeable side plate Picatinny Rail | Polymer Frame, Alloyed Forged Steel Barrel and Slide Rear Sight Firing Pin Block and Trigger Safety 3 size changeable back straps 3 size changeable side plate Picatinny Rail | Polymer Frame, Alloyed Forged Steel Barrel and Slide Rear Sight Firing Pin Block and Trigger Safety 3 size changeable back straps 3 size changeable side plate Picatinny Rail | Polymer Frame, Alloyed Forged Steel Barrel and Slide Rear Sight Firing Pin Block and Trigger Safety 3 size changeable back straps 3 size changeable side plate Picatinny Rail | Polymer Frame, Alloyed Forged Steel Barrel and Slide Rear Sight Firing Pin Block and Trigger Safety 3 size changeable back straps 3 size changeable side plate Picatinny Rail | Polymer Frame, Alloyed Forged Steel Barrel and Slide Rear Sight Firing Pin Block and Trigger Safety 3 size changeable back straps 3 size changeable side plate Picatinny Rail |