Block I clone I have so far. It’s all Colt from the 14.5” barrel to the N1 stock and FCG. The only thing wrong so far is the lower which I have a PSA M4A1 lower on the way until I can get a Colt one. That’s also a KAC RAS, VFG, and Rail Covers with Vero Beach markings. The last pieces are the CompM2 with Wilcox mount and I’m waiting on my buddy to get back to send me a Matech rear sight.