1928a1 SA tommy build (requested)
this thread will be for my Thompson 1928 semi auto build.
im not interested in a submission or any of that type of stuff at this time. If this works and turns out nice and im 100% sure that it would get approved then we may go there.
anyone who wants to attempt this needs to understand that your taking a chance on ruining a very expensive kit!!
now heres where im at.
after much kicking around with all of my buddy's about FCG's & striker's and so on... ive decided that yes a striker is doable & probably easier in the Tommy.
so of course im NOT gonna do it that way. we are going hammer fired here.
ive discussed several different groups.. AR,AK,FAL, CETME,870 and all the rest.
this will get some frowns but im gonna go with the AR on this build. ive got several reasons for this and we'll get to them in just a bit.
lets talk about the 922r end of this.
there are no foreign parts here to worry about so its all about the blocking rail/pins and barrel length.. since im using the AR FCG there is no issue on the positive disconnect and all that jazz either.
ive found some 16" barrels but i think they look like sh*t when you ad the compensator on it.. so my intentions are to take the 16" barrel and have it reworked a bit to where the compensator will be "back" on the barrel as far as possible.
this will help in looking closer to the original.
now lets get to the serious stuff.
first i took and laid my AR FCG holes out by site on my lower just for a visual of "will this work".
it actually looked doable and like i can get a FP hit just past straight up and down. this is good news. it also looks like my "in brain idea" of hammer travel and clearance will be okay to.
good thing about this bolt is that there is already a path started for the hammer to swing thru.
look at the front of the bolt. see that toggle area? we are gonna take that toggle out and mill out path right thru there....
first thing you gotta do is take out the toggle piece (real technical aint i?). just shove the pin out and it will literally fly right out of there.
this is where most of the guys are gonna bail out..... now is the time you have to decide if your gonna take a chance on ruining a bolt of one of the most popular guns in history. if not, then just watch and hope that i make mine come out.
heres why: when you take out the toggle you will find that a Tommy FP has a hell of a spring on it. our first order will be to retain that FP in there, so im gonna drill a little hole thru the bolt and put a pin in there with a notch in the pin so that it will stay in place but still have full travel.
lets talk about the FP for just a second:
made a split in the FP for the retainer pin to go thru, then put a little touch of cap weld on the end and gave it a little "dome".
http://i60.photobucket.com/albums/h1...20build/FP.jpg yeah its blurry!!!
heres a new pic to show you what im talking about...
this gave just a small bit more FP to hit with the hammer and hardened it and quenched it in oil too!!
back to the retaining pin:
chose dead on top cause there was a little flat spot there for me to center punch and drill.
yes of course i broke a bit doing this... very small hole!!
now see the FP is retained?
ok now the nerve racking part starts.... we are about to totally just cut up a tommy bolt!! im getting queasy just thinking about it. ;D