Description Mounts are designed for exceptional strength and superb accuracy. Front part of base accepts dovetail ring locking it in position. Rear ring is held by windage adjustment screws. Shims may be used for gross elevation adjustment. Firearms, trailers, and some accessories are only available for purchase in stores. Each location follows all BATF and individual state/county/city laws to insure the desired product is legal for sale. Any info provided online is subject to change, please go to your local store for more accurate information.