Check the listing for details. SEEALL Open Sight Mk2 Micro Rail Sight Cap. Condition: New. Listed at 5.00 USD. Included is 1 aftermarket cap. This impact resistant cap is designed to snugly fit the SEEALL Open Sight Mk2 Micro Rail Sight. Features: reversible back ridges to improve griplanyard loop large enough for paracordrequires over 2 pounds of force to removecompatible with Mk2 Micro Rail Sight This is not IP rated, but I did some very basic impact tests. My preliminary tests consisted of beating the capped sight on a cinder block until something broke. That resulted in minor cosmetic damage to the cap, and no damage to the sight. I later tested the cap alone by hitting it with a 2.5lbs blacksmith hammer. Those results are in the picture gallery. Does not include any other parts. Will combine shipping. Designed and manufactured in the U.S.A. using nylon made in the U.S.A. SHIPPING: I will combine shipping across listings. Shipping labels are printed the night before, or the morning of the day your package will be shipped. I aim to get your package out the next business day, even though I've set the handling time to 3-days. If you buy something on Friday or the weekend, it will be shipped Monday at the earliest. In my experience, Priority mail might be delivered a day sooner than First Class, but most of the time it's no different than First Class. Mk2 - Micro Rail Sight