Aimpoint Replacement Adjustment Cap CompM5 Black. This red dot sight cap by Aimpoint is a useful red dot sight accessory when you need to make finetuned adjustments to the brightness of your CompM5 red dot sight. The Aimpoint CompM5 Red Dot Sight Cap has a rough side surface that sand or debris to collect and it helps to protect the surface finish of your red dot sight. Red dot sight caps by Aimpoint are built well and durable and will help to increase the service life of your red dot sight. Red dot sight caps are a great red dot sight accessory when you need to transfer brightness settings to another device. You can easily change the brightness of your red dot sight with the Aimpoint CompM5 Red Dot Height Adjustment Cap. Specifications for Aimpoint CompM5 Replacement Adjustment Cap: Manufacturer: Aimpoint Color: Black Package Contents: Aimpoint CompM5 Replacement Adjustment Cap Aimpoint 200424: Replacement Adjustment Cap CompM5 Black