Features - Aluminum alloy construction - CNC machined for a precise fit - Designed for use with Tokyo Marui and other compatible gas blow back Hi-Capa pistols - Adjustable rail piece can be brought forward or backward, right and left, for maximum tuning capability - Included extended slide stop helps with smoother reloads Manufacturer: Laylax / Nine Ball Color: Gold Specifications: Compatibility: For Tokyo Marui, WE-Tech and other compatible Hi-CAPA 5.1 Series Airsoft GBB Pistols (Modification may be required. Professional installation recommended.) Material: CNC Milled Aluminum About Prometheus / Laylax Providing products in the Japanese market for the better part of 20 years, Laylax is well known for their high manufacturing quality and precise tolerances. Their tried and true parts and accessories have led them to be the leader in Japanese airsoft engineering.