Metal Engraved Geissele Type Gas Blowback GBB Trigger Guard Replica Black This is a replica trigger guard of the GEISSELE Ultra Precision type BK with engravings, compatible with the Tokyo Marui M4 MWS series. Made of aluminum, black color. Colors and textures may differ from the photos. Everything in the photos is included. Please note that due to being an overseas product, there may be unevenness or minor scratches on the product. When installing, processing or adjustments may be required. Please do not bid if you are unable to make adjustments yourself.