Forward Controls Design Aimpoint ACRO Full Size Glock Gen 5 MOS Adapter Plate 4140 Steel Black OPF-G ACRO. This Glock compatible mounting plate is designed to fully support the optic in the front and rear with threaded posts that connect with the sight-to-mount screws ensuring minimal sight movement. The adapter plate is made of steel and covered in Melonite to increase the ability to avoid corrosion and to increase the lifetime of the mounting plate. Specifications for Forward Controls Design Aimpoint ACRO Full Size Glock Gen 5 MOS Adapter Plate: Manufacturer: Forward Controls Design Red Dot Sights-Footprint: Aim Point Acro Optic Cut: Aimpoint ACRO Color: Black Finish: Nitride Weight: 1 oz Gun Make: Glock Package Contents: Forward Controls Design Aimpoint ACRO Full Size Glock Gen 5 MOS Adapter Plate Forward Controls Design OPF-G ACRO: Aimpoint ACRO Full Size Glock Gen 5 MOS Adapter Plate 4140 Steel Black