With the proper tools you can do it.. it is not that hard. You need the shop manual to do this. (tools: punches, allen wrenches, bbl vice blocks, bbl nut wrench/tool and torque wrench) then it would be best to check headspace too.
Colt, USMC and Army have one. you should be able to find them on line or via one of the dealers. Sorry I don't have a TM# or refrence at this time. wait..., actually I do have the number for the USMC one.. TM 05538C-23&P/2
maybe you could hook up with someone on the forum that's in your area???