Here’s a high-quality rifle accessory every can use! Sometimes all you need is a small rock-solid anchor point and if your rifle add-on clamps to a Pic rail this’ll do the trick. Evolution Accessory Rails can be added or removed at any of 7 positions around the Evolution Series rail and also any place along the length of the tube. Compatible with Evolution Series only and RTR Series. 2 Accessory rail kit includes two rails 4 slots per unit.”