The Strike AR-10 Enhanced Bolt Catch is another piece in the SI line of high quality parts for the AR-10 market. This SI Enhanced Bolt Catch features an extra wide bolt catch lower lever surface and grooves for added grip which helps make its operation effortless. The widened bolt catch lower lever assists in the manual locking of the bolt carrier group to the rear. The solid construction and clean matte black finish make it a great looking replacement or an essential pick for a new build project.