Baltimoreed11754

Here’s a AO WH Thompson sbr that Deerslayer put together for me a while back. Swapped barrels, quick connect buttstock, engraving, steel rivets on the rear sight. I added the reduced power springs, buffer, round bolt knob and did the case for it and a few friends. I built a horizontal forearm/sling for it too so I can use it in a future military match. A great build.

I got my 10.5 inch barrel from numrich. Deerslayer did my sbr rebuild. Great guy. Also did the easy take down milling and take down stock work. I did the stock refinish and built the uke case.

Love the one with the magazine band AND heat shield bayonet mount. He didn’t even bother to look to see what was correct. Cant call it a fake I guess as it’s not a copy of anything.

I bought the springs and buffer material from Mcmaster Carr and did my own.

Buy the gun, not the story but it is only 4000.00. Crazy.

Got my heat shield from East Taylor. While it fit the M12 trench I was building it looked rough and needed work and bluing. My understanding is that commercial bbls are smaller when cut back. ET shields can be bought to fit the cut commercial bbls. The 3 bayonet mount screws have to bite into the bbl or else it will not stay put.

Dan is indeed the Thompson man. He sbr’ed mine, I built the case.

Dan built my 1927a1 into a 1928 sbr. Very reasonable. Do his recommended upgrades, steel rivet staking the rear sight, e-z takedown and I had him mill it for the 1928a1 removable buttstock. Got my 10.5 inch bbl from numrich. Good luck.

Good looking build. Captain Miller would be proud.

Yes, all still available.

Dan’s the man. He did the machining and bbl swap on my sbr. A-1 work. I built the case.

I’ve got a Thompson 1928 stock slide that I bought for my sbr’ed 1927a1 that Dan converted to take a down buttstock that I don’t need. I had ordered an original GI slide from the Netherlands but it took so long to get here [2020 strikes again] I figured it was lost at sea so I bought one from GPC. I’d take $50.00 for the slide and shipping. Also have the 1927a1 buttstock from my AO build and another very heavy British style buttstock [upper and lower swivel] and custom forearm that I got from Ivan. Missing the lower buttstock swivel but has a very nice grooved buttplate. Id take $90.00 plus shipping for all 3 stock pieces.

I’ve fired a full auto Thompson years ago but don’t remember how hard or easy the bolt worked but a full auto Thompson is an open bolt gun so you never fight the bolt. It locks back when the mag is mty or you release the trigger. Pulling the trigger releases the bolt firing the gun. The semi is a closed bolt gun. You have to cycle the bolt to load.

Mr Canfield, Recently purchased my own copy of your fine military shotgun book. Very well done and very thorough. I had borrowed one from my local library to research a Winchester M12 trenchgun built out of a field gun that I did back in 2017. Recently completed a M12 riot and have started on a Stevens 520-30 trench. The prices of the real deals are unfortunately out of reach but a reasonable facsimile will do just fine and I get the enjoyment of building it. Just shot my M12 riot build in a BAMM Saturday along with a bubba’ed 1903 Springfield that I had remilitarized years ago. Retirement is a good thing. Just wanted to says thanks for a great reference book.

That’s it. I replaced my ‘cheese grater’ with the round checkered ball after installing the reduced power springs and buffer and have no problems cycling the bolt. Looks much better.

Thanks, thinking that I stumbled up on it on fleabay years ago along with the cut down bbl. Someone else’s abandoned 520-30 build. The magazine, spring, follower, mag nut, stock, plain pump handle and slide parts were found either there or at GPC.

Now that my M12 is done I can get started again on a Stevens/Riverside 520A that I bought in 2019. Planning on leaving the original 30 inch bbl alone but building a second trenchgun bbl assembly. Another of JMB’s brilliant creations. I’ve since found an ‘in the white’ heat shield, bbl, mag tube plus action bar, lower swivel and a plain stock and pump handle from GPC. Started bluing things yesterday. Coming along. Update—started fitting the too proud stock to the tangs and recvr today.

I robbed the ‘03/Thompson swivel from another stock. Think I’ve got my M12 build done. Not bad for a 94 year old. Added her younger [1940] brother.

Did some lower swivel inletting on my M12 stock.

I have two sbrs, my first was an AR .45 pcc and the second is my 1927 AO Thompson that Dan did. But whats the wait time going to become if Biden decides that all our AR pistol lowers need to be registered as sbrs to stay legal?

Ivan, I contacted Paul about your dad’s Thompson wood you sold me but he declined due to shipping to France. Guess he’s looking for ideas to build his own. As my build evolved into a 1928 take down stock style sbr instead of a British military build I never did anything with your dad’s nice stock work. As my wife used to say about keeping things that you’re not using, ‘it ain’t eating anything.’ Maybe a M1A1 eventually.

I borrowed a buds facing tool kit and cut and faced my donor 1925 M12 today. Also faced the bbl on a 1894 Marlin that I built into a Trapper. My M12 has been apart so long I couldn’t remember how to get it back together. Anyone know about polychokes? I want to reuse the bead that was on my donor bbl but I need to know the dia and tpi. Looks like this. Going to sling it just because I like slings and I have found a few police dept M12’s with them. I think this is how I’ll do the upper swivel. Went ahead and installed a brass bead on my gun as I couldn’t find out the size/tpi of the polychoke bead. Going to redo the butt this week and mill the lower swivel. Have to get rid of the stain in it from the price sticker that must have been on for years. Started working on the buttstock refinish and epoxied the upper swivel to my spare bbl band. Trying to match the color of my pump handle is being difficult. My usual Birchwood Casey red walnut is too red so I’ve added some brown to it. Try again tomorrow.

mbc, The gun was around 1000.00, GPC 10.5 bbl was 218.00, 1928 stock slide was 85.00 from the Netherlands, Dans work was a couple hundred I think. A 12.00 buttplate. Don’t remember what the buttstock cost. Not including any shipping in these numbers. And the half year wait-200.00 tax stamp to sbr it. Twernt a cheap build. But it was a very cool one and with my faux gator case build I’m sure I could get my money out of it. Too much BS&T on this one to ever sell it. Hope you find a good one.

My Thompson experience. After much hemming and hawing I finally bought a lightly used but running 1991 vintage stock AO WH 1927A1. I did my own ezee spring and buffer install. Had Dan sbr it [install a 10.5 inch bbl and swap the cutts comp], mill it for the easy takedown, steel rivet in the rear sight and mill it for a detachable GI buttstock. I replaced the clunky knob with a correct checkered ball and bought an old gi stock, a pair of stock slides [that’s another story] and a 12.00 enfield buttplate as opposed to a 95.00 rusty Thompson plate, refinished the stock and shaped and installed the plate. Not had any real issues with it. The occasional fte but my loads are on the light side. It likes jacketed of course, round nose lead, swc and pc bullets. Don’t know what to tell you as it’s the nature of the beast, don’t buy a Monday or Friday rifle and you’ll be ok. my AO.

I have finally gotten around to fitting my GI takedown stock slide to my Thompson. The GI Slide came from the Netherlands and was so long in arriving [6 months] I figured it was lost at sea so I ordered a cheaper AO unit from GPC that took a bit but still beat the first slide. The AO unit was very tight to the stock but loose to the frame and had slop in the lock while the gi unit was a slip fit to the stock, tighter to the frame but the lock would not engage the cut in the frame. My first thought was to mill it—hah, it laughed at my mill so I used my 1 inch bench belt sander to shorten the lock. After a lot of measurements, grinding with a wore out belt and trying it, I got it to lock with zero play. The buttplate is an enfield plate that I bought for about nothing and modded to fit the stock instead of buying a 95.00 original rusty Thompson plate. I did have to move screw locations slightly.