Geissele URGI 11.5-inch Carbine on an FN M4 Collector Lower with Lazarus 6

A Geissele 11.5-inch URGI fighting carbine on an FN M4 Collector Series lower, with Geissele internals throughout: the reliability-enhanced BCG, lower parts and a Super 42 braided spring with an H3 buffer. An Aimpoint T2 rides a Unity FAST Micro mount, a SureFire Scout Pro dual-fuel light and an SMS Trinity LAM sit on the rail, and a Dead Air Lazarus 6 mounts on an FCD three-prong Plan B flash hider. The builder reports zero malfunctions and easy hits on steel out to 300 yards.