The commercially available version of Colt’s new .308 rifle is the SP901 rather than CM901 (Colt Modular). It will go for a cool $2,129.00. What makes this rifle so special is that with a simple change of upper receivers, you can covert the 901 from .308 to .223. No other alterations to the rifle are required thanks to the 901’s innovative magwell.
Beyond 556 via The Firearm Blog
