NOTICE: This item is made by the 3D printer. Please note that each of the grip size and layer may be slightly different. You may need to adjust when you install the grip into the gun. The material is weak against heat. Please do NOT: use, leave, or store this item near/at high temperature location. The shape of the grip may change. Please note that this item is NOT compatible with the NINE BALL Tokyo Marui GBB Hi-CAPA5.1/4.3 Magwell NEO.