Sporter & LEO markings are pretty much gone now, the newest guns say "M4 Carbine". I just got an LE6920MP-R that says M4 Carbine and has an SP serial #. Speaking of which, look up that specific model, it's a limited edition deal by Talo with lots of goodies for about $1250. I had a Bushy several years ago and fit & finish were way behind this new Colt!