The SI-XBC Extended bolt catch is a heavy-duty, go-fast addition to the SI line of enhanced parts. Under high-stress situations, the oversized bolt release lever aids in rapid thumb or palm engagement, even with gloved hands. The lever is reinforced for increased durability and impact resistance.Package Includes: 1 x AR Extended Bolt Catch 1x Bolt Catch Roll pinFeatures: Mil-Spec bolt catches engagement surfaces function with a mil-spec bolt carrier. Wide surface area "ping pong paddle" for faster operation. Solid Investment Cast8620 construction, case hardened. The widened bolt catch lower lever allows for easier manual locking of BCG to the rear. Sleek SI Designfitsforged Mil-Spec receivers blend well aesthetically with many billet upper and lower receivers.