C&H Precision Weapons V4 Defender MIL/LEO Adapter Plate Glock MOS Holosun 407C/507C Round Face Black. Each plate is precision machined to the tightest tolerances on HAAS CNC machines and each plate goes through multiple quality checks before shipping to our customers. Most of our plates feature a patented stainless steel T-Nut which provide an industry leading six to seven threads of engagement. Since all the mounting hardware is replaceable if any mounting hardware is damaged it can be replaced without replacing the entire plate. Specifications for C&H Precision Weapons V4 Defender MIL/LEO Adapter Plate: Manufacturer: C&H Precision Weapons Red Dot Sights-Footprint: RMR Optic Cut: Holosun Fabric/Material: Polymer Color: Black Gun Model: Glock 17 MOS Finish: Mil-Spec Type III Hard Anodized Weight: 0.125 lb 0.3 lb Gun Make: Glock Length: 5.5 in Width: 4 in Height: 2 in Package Contents: C&H Precision Weapons V4 Defender MIL/LEO Adapter Plate Polymer Optic Plate M3 Plate Mounting Screws 4-40 Optic Mounting Screws Patented 416 Stainless Steel T-Nuts What firearm models does the manufacturer say C&H Precision Weapons V4 Defender MIL/LEO Adapter Plate is compatible with? The manufacturer suggests that C&H Precision Weapons V4 Defender MIL/LEO Adapter Plate is compatible with Glock 17 MOSC&H Precision Weapons GL-HOLO7-DEF-ROUND: V4 Defender MIL/LEO Adapter Plate Glock MOS Holosun 407C/507C Round Face Black