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Embalmer
05-12-2010, 11:54 AM
anyone else experiment with this with their semiauto thompsons? ive gotten good enough to do it aimed from the shoulder by squeezing the trigger just enough so if i pull the gun forward a tad with left hand for it to do five round bursts each time. havent perfected a whole mag dump yet, but isfun and gives a good replication of the expensive full autos.

jlottmc
05-12-2010, 11:57 AM
That sounds like a visit from the ATF waiting to happen.

Embalmer
05-12-2010, 05:38 PM
actually is perfectly legal, cause theres no modification to gun, or no devices to help rapid fire it. Its just held right, and can manipulate the trigger to fire the gun at a high rate of speed using the guns own recoil, but still works as a semi auto as the trigger needs to be pulled for each shot. ATF will and has said same thing. But i do it aimed, and not from the hip as most people do with garands, m14's ar15's ect as its not as controlled or know where those will fly to.

Bawanna
05-12-2010, 05:47 PM
actually is perfectly legal, cause theres no modification to gun, or no devices to help rapid fire it. Its just held right, and can manipulate the trigger to fire the gun at a high rate of speed using the guns own recoil, but still works as a semi auto as the trigger needs to be pulled for each shot. ATF will and has said same thing. But i do it aimed, and not from the hip as most people do with garands, m14's ar15's ect as its not as controlled or know where those will fly to.

I never heard of this before but your saying I can take my 1927a1 and get the trigger in just the right sweet spot and rely on my finger reflex from recoil to fire basically full auto? I'll sure be trying this out first chance I get, I don't get to where I shoot my rifles too often. I can shoot the tommy at my indoor range but I think they'd frown at this type of experiment.
I have 2 M14 GI issues that I fancied the stocks up on and we use for dept parade rifles. They have the full auto stuff (that I was able to order legally) in them and we play with them from time to time. What a absolute blast they are.

Embalmer
05-12-2010, 06:19 PM
takes alot of practice, as I said I got it down to 5 round bursts atm. Def think you need the ez pull recoil springs to make it feed reliably. here is a video of a thompson bumpfiring.

http://www.youtube.com/watch?v=DUgKg7KL4oA


http://www.youtube.com/watch?v=uvCWSdB1nLU

and a semiauto thompson pistol bumpfired

http://www.youtube.com/watch?v=22BXs_C3GdQ

Bawanna
05-12-2010, 06:51 PM
takes alot of practice, as I said I got it down to 5 round bursts atm. Def think you need the ez pull recoil springs to make it feed reliably. here is a video of a thompson bumpfiring.

YouTube - thompson bumpfire (http://www.youtube.com/watch?v=DUgKg7KL4oA)


YouTube - Thompson sub-machine gun (Tommy gun) BUMPFIRE (http://www.youtube.com/watch?v=uvCWSdB1nLU)

and a semiauto thompson pistol bumpfired

YouTube - HERE IS HOW TO BUMP FIRE A THOMPSON (http://www.youtube.com/watch?v=22BXs_C3GdQ)

I've been gonna get me one of them ez pull recoil springs setups, guess I better move that up on the list. This looks like a fine time and a great way to use up all this surplus 45 ammo that just laying around everywhere. Yeah right.

Embalmer
05-12-2010, 07:25 PM
lol they work great. When I got my 1927a1 commando, would always jam, and it damaged the bolt within 400 rounds. sent it back, they repaired the feed ramp, replaced the bolt. I got the gun back, put in the ezpull recoil kit, changed the black painted m1 wood, to original savage m1a1 wood, and has fired exactly 1550 rounds without a single jam or misfire to date since it got repaired in Febuary. Id love to be able to do one full 50 round drum dump with bumpfire, but with the light recoil of a .45 it isnt easy. people are impressed with the 5 round controled bursts though.

Bawanna
05-12-2010, 07:38 PM
lol they work great. When I got my 1927a1 commando, would always jam, and it damaged the bolt within 400 rounds. sent it back, they repaired the feed ramp, replaced the bolt. I got the gun back, put in the ezpull recoil kit, changed the black painted m1 wood, to original savage m1a1 wood, and has fired exactly 1550 rounds without a single jam or misfire to date since it got repaired in Febuary. Id love to be able to do one full 50 round drum dump with bumpfire, but with the light recoil of a .45 it isnt easy. people are impressed with the 5 round controled bursts though.

I'll go for the 5 round any control first then the 50. I'm thinking this is gonna be plenty tricky.

Embalmer
05-12-2010, 08:01 PM
like i said need to pull the trigger back just far enough with right hand (what ever hand you shoot with) then using other hand slowly pull gun forward to fire it, then if held JUST right the recoil and forward pull should pull off the full auto effect. I do it aimed from shoulder. may be easier from hip, but i dont like not knowing where my rounds are aimed at. took like 3 mags to start successfully getting 2-3 round bursts then worked way to 5. now just need to get money together to start the SBR conversion, as I got the approval paperwork back from atf.

jlottmc
05-13-2010, 08:36 PM
Gents, the ATF has done dirty things to people with malfunctioning weapons. Look it up, I would be leery of doing that. An interesting way to spend ammo though. Hold a semi at the point the disconnecter doesn't engage...

Ghostsoldier
05-14-2010, 01:25 PM
Damn, that's awesome...I gotta learn that!

Ah, screw the ATF....I paid them for my SBR stamp, and my receiver is registered as a semi-auto, so they can take a flying leap as far as that goes...I meet the NRA requirements, there's been no modifications to my gun (except the EZ Pull springs), and by law, that's enough! :D

I wonder, though...will this method work with blanks? The recoil is a lot lighter with blanks, compared to live rounds....I guess a heavier-grain load might do the trick...:)
Rob

Ghostsoldier
05-14-2010, 02:06 PM
I fooled around doing some research about this, and this is something I found that's cool:

Poormans Machine Gun (http://poormansmachinegun.com/)

Check out the 'legality' section...he's got a letter from the ATF that defines a "machine gun", and they (the ATF) are telling him that bump-firing in not illegal by their standards....;)

Rob

Bawanna
05-14-2010, 02:47 PM
Wheres a good source for them ez pull springs again? I know someone mentioned it long ago but I'm not finding it now. I think I'm in love with my tommy again.

Ghostsoldier
05-14-2010, 02:58 PM
TommyGunner.com Semi Auto Thompson EZ Pull Recoil Spring Kit (http://www.tommygunner.com/pages/parts/ezpullspringkit/)

I paid 50 bucks for mine about 5 years ago, and bought them from the guy who makes them, but I don't know if he still does....;)
Rob

Embalmer
05-14-2010, 04:58 PM
theres a guy on machinegunboards.com who sells them for 35 bucks. name is deerslayer. where I got mine from. get 2 new springs, a hamer attached to spring, and a buffer.

and Ghostrider is right, its not illegal by their standards, cause i dont think they can ban a type of shooting style, as you are conciously pulling the trigger. im busy paying taxes ect, so I can get my SBR projectdone, then its off to range to attempt to mag dump via bumpfire.

Ive never fired blanks, so dont know if it will work. I do know I want to look into modifiying the trigger pull to be lighter, will prob make bumpfiring alot easier like a ak47 and ar15. I can even do a 30 round mag dump with m1 carbine bumpfiring with ease.