The FN USA Military Collector M4 is a civilian market military replica rifle of the M4, which has been made to FN's exacting specifications. FNH USA has created an excellent choice for duty, defense, competition, and hunting applications with the tradition and look of the M4. The FN-15 Military Collector is well made continuing the legacy of excellence that FNH USA is world famous for. Combining rock-solid reliability with pinpoint accuracy and battle-hardened durability, the FN 15 Military Collector M4 Rifle is ready for the firing line. This rifle features a 14.7", button-broached, chrome-lined barrel that is 16" in overall length with a permanently affixed A2 style compensator. It's built around a durable aluminum a flat top receiver with the M-1913 MIL-STD picatinny rail that sports an adjustable rear sight and an A2-style front sight for easy target acquisition. It features a Knights Armament M4 RAS Adapter Rail handguard with rail adaptor covers and a collapsible, 6 position stock with sling mount. For those who want the newest version of this battle classic with the accuracy and reliability of FN, look no further than the FN 15 Rifle Military Collector M4.