Forward Controls Design Adjustable Turret Cap for Aimpoint Comp M5 - Pack of 2 Black ATA Comp M5. ATA Comp M5 includes two caps and two discs that allow windage and elevation adjustments without having to remove the caps. This turret cap pair is machined from 17-4 SS with 17-4 SS rotating discs and includes O-rings. Note: These turret caps are not compatible with the T1/T2. Specifications for Forward Controls Design Adjustable Turret Cap for Aimpoint Comp M5 - Pack of 2: Manufacturer: Forward Controls Design Color: Black Fabric/Material: 17-4 Stainless Steel Red Dot Sights-Footprint: Aim Point Micro Features of Forward Controls Design Adjustable Turret Cap for Aimpoint Comp M5 - Pack of 2 Compatible with Aimpoint Comp M5 Micro Dot Sights Internal O-rings Package Contents: Forward Controls Design Adjustable Turret Cap for Aimpoint Comp M5 - Pack of 2 2x Discs Forward Controls Design ATA Comp M5: Adjustable Turret Cap for Aimpoint Comp M5 - Pack of 2 Black