Trigger features a short takeup with positive reset. Modular wrap-around grip system. Safe, easy takedown with no tools or trigger pull required. Ambidextrous slide stop and magazine release. Safety features include internal, automatic sear block system, integrated trigger safety. Also includes - Two nickel-TeflonĀ® plated steel magazines; small, medium and large grip modules. Pre-tensioned striker system features a powerful striker spring for positive ignition. MIL-STD-1913 Picatinny rail.