I have a custom built maple airsoft m4 rifle Upgrades are as follows Tight bore barrel R hopped JeffTron Leviathan Bluetooth mosfit Control fire rates and fps from your phone with the app. Full metal gears in the gearbox. Upgraded flat trigger Upgraded mag release Magpul forgrip Custom engraving on the mag well Rifle is made out of billit aluminum not pot metal. Comes with 2 extra heat shields one red one black. Bio infected killer suppresser 4x zoom scope with red dot Comes with 6 magpul p mags with upgraded springs This rifle had never been out if my house its in brand new condition never seen a game never got into airsoft price is firm must pick up no trades please cash only