The C&H Precision Pistol Red Dot Adapter Plate is the most modular, rugged, durable, reliable and most widely used aftermarket optics adapter plate. The Red Dot Adapter Plate features a patented stainless steel T-Nut which provide an industry leading six to seven threads of engagement. Note: Only Fits Glock Gen 6 Pistols FeaturesMade From Mild Steel Mounting Hardware Included DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.