- Umarex Glock45 GBB Based - CNC Steel Slide set Installed - CNC Steel Outer-barrel x 1 - Real size rear plate x 1 - Steel RMR Plate & Cover x 2 - Bomber Stainless Steel Shim plate for RMR Slot cover x 1 - Proarms 130% Steel recoil spring set x 1 - Original Front / rear Sight x 1 - Umarex 20 Rounds Magazine x 1 - **RMR type Sight is not Included