Yes they both function very well..45 ACP....How difficult to build? ....I had trouble reading the blueprints but I have bad eyesight..So I made 3 small mistakes on the first one but I tig welded some new metal into the stainless steel frame and recut it....How difficult? I dont know how to answer that.... I am a machinist and have a well equipped shop , lathes and mills and surface grinders etc, etc,, if I didnt make mistakes I wouldnt have thought the work was hard at all...There have been guys manage to finish such a build and all they had to work with was a Dremel and a drillpress....... but they didnt machine their slide like I did working it from a rough casting, that was touch and go , I would not have been surprised if I'd have messed that up since that work isnt easy to do without specially made tools...I did make 8 or 10 special ground cutters to do the work on the whole project a couple special just for the slide..
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. Aww well aww well..Good hobby , now I started building Highwall parts..That will keep me entertained for couple months , I'll make every piece but the barrel , will make every bolt ,every spring , will cast the crescent buttplate , will carve the stocks.....See the picture... You believe that piece will eventually look for all the world like it come from the Winchester factory? I assure you it will..