I have a buddy whose area is being overrun by piggies, big and little. He's got a lot of guns but has decided that a bigger-bore AR-15 style rifle would be best, and he's considering a 450BM upper, as well as a .458 SOCOM. While I'd rather he went with the Bushmaster, it's up to him. But he's going to need a good lower receiver, doesn't have the inclination to build one from scratch, so I'm looking for a deal on a good complete upper, if anyone has seen one recently. He's not a gunsmith but he's pretty mechanically-oriented, and I could probably coerce him into doing a decent trigger job on it. I bought one from Palmetto a few years ago and liked it, I'm inclined to steer him that way. Most of you are more into the build-it-yerseff thing more than I, so.......
What say you gents?