Aimpoint Battery Cap for CompM4. This Aimpoint Red Dot Sight Accessory is designed to work with the Aimpoint Red Dot Scopes. The Aimpoint Battery Caps for Red Dot Sights is made with great Aimpoint quality and will not disappoint you. We carry an extensive collection of AimPoint Red Dot Sight Accessories. For our complete selection of products by Aimpoint on sale please visit our Aimpoint page. For more Red Dot Sight Accessories please visit our Red Dot Sight Accessories store section. Specifications for Aimpoint Comp/Micro Red Dot Sight Battery Caps: Manufacturer: Aimpoint Condition: New Package Contents: Aimpoint Comp/Micro Red Dot Sight Battery Caps Aimpoint 12221: Battery Cap for CompM4