C&H Precision Weapons Trijicon RMR/Aimpoint ACRO/C&H Duty/Duty-XL Optic Mounting Plate MIL-SPEC Type III Hard Anodized Black. Most of C&H's plates feature a patented stainless steel T-Nut which provides 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 Trijicon RMR/Aimpoint ACRO/C&H Duty/Duty-XL Optic Mounting Plate: Manufacturer: C&H Precision Weapons Color: Black Finish: Anodized Black Optic Cut: Trijicon RMR Condition: New Additional Features: Mount Case Finish: Anodized Light/Laser Attachment: Trijicon RMR Handle Color: Black Blade Finish: Anodized Handle Finish: Anodized Features of C&H Precision Weapons Trijicon RMR/Aimpoint ACRO/C&H Duty/Duty-XL Optic Mounting Plate Fits RMR Footprint Plates For Aimpoint ACRO and C&H Duty/Duty XL Package Contents: C&H Precision Weapons Trijicon RMR/Aimpoint ACRO/C&H Duty/Duty-XL Optic Mounting Plate (3) 6-32 x .285 M3H Plate Mounting Screws (3) 4-40 x .250 FH Plate Mounting Screws C&H Precision Weapons RMR-ACRO-XL-ST: Trijicon RMR/Aimpoint ACRO/C&H Duty/Duty-XL Optic Mounting Plate MIL-SPEC Type III Hard Anodized Black