Rock River Arms LAR-15M NM A4 223 Wylde 20in Black Semi Automatic Modern Sporting Rifle 20+1 Rounds - The LAR-15 NM A4 is exactly what you need if you are looking for a reliable AR-15 with multiple upgraded features. This gun comes equipped with a two-stage match trigger, an operator stock, 12.5in free floating carbine handguard, heavy match stainless barrel, and (1) 20 round magazine.