Jual iseng dan teramat santaayyy :D :D http://i14.photobucket.com/albums/a328/rbowz/m4.jpg D-Boys M4 R.I.S Internal : - Gearbox Standar D-boys kondisi sehat - Modify Cylinder set (cylinder, cylinder head, piston, piston head, nozzle) - Modify spring 120+ - Systema hop up chamber - Hop up rubber P...