Colt makes more than handguns. This industry stalwart also makes elite rifles. Be sure to reserve your Colt rifle today as these are quite the popular firearms. The new Colt M16A1 Retro Reissue 5.56mm NATO Semi-automatic 20rd 20" Rifle CRM16A1 has quickly emerged as one of the industry's best. Colt rifles are available in varied colors, styles and sizes. However, one thing is consistent across the Colt rifle line: the 5-star reviews. Nearly every Colt rifle has a perfect user rating. The Colt Expanse M4 HB and Colt LE6920-R Trooper M4 are particularly popular.