The Knights Armament SR-15 E3 Mod 2 Series rifle offers AR aficionados and first-time owners with a high-quality, semi-auto rifle platform that enables users to do everything they need, whether it's precision shooting or close-range rapid fire. The Knights Armament SR-15 E3 Mod 2 Series rifle features the company's military-spec 5.56 NATO barrel, which is surrounded by the company's URX4 handguard, fully compatible with all M-LOK accessory attachments. Other improved features include an enhanced bolt-lug design that aims at improving service life, as well as a two-stage drop-in trigger that allows for precision shooting. Direct-impingement action Barrel leng Mfg: Knights Armament