For those looking for a more realistic-looking GHK SIG 553 Gas Blowback Rifle, Bunny Workshop got a custom version that you might want. The Bunny Custom GHK SIG 553 GBB got the Laser marking engravings in areas where they should be. It is also kitted with the Maple Leaf CNC Hop Up Chamber Set for GHK 553 and the Maple Leaf Crazy Jet Inner barrel (240mm). If you want one, better enquire at their Facebook Page.