Philadelphia Ordnance M1A1 Blank Firing Gun as a Host for a Post?

[JohnnyRingo12]

I have been studying and gathering up a list of parts needed to build one, when looking for 80% receivers i saw that they sell a blank firing gun for about 2500. The parts i added up are about that, and then i still have to machine the receiver. My question, if i hust bought the blank firing, replaced the barrel would that be all i would need to do? Or have the internals or other parts been made specifically to a blank gun. Could the barrel and internals be swapped out with F/A parts? Or would it be just better to buy all the parts and receiver and do it that way?

[Mike Hammer]

I'm sure that Bob will chime in when he sees this but it would be much easier to just get the parts and make one.

[ppgcowboy]

I am positive that internals for the blank are not swappable with full auto parts. Bob will chime in.

[pjr2412]

You can find information by searching for Bob's post "Phila Ordnance M1 Thompson Full Auto Blank Gun"; just enter the title (without the quotes) in the search box. Bob describes the gun and also posted some photos. The design is such that it cannot be modified to function as a full auto firearm.

Paul

 

[JohnnyRingo12]

Thanks for the info guys!

[TSMGguy]

Owning a Phila Ord M1A1, I know the entire lower is made to GI specs including all of the internals, some of which are GI, some excellent repros. The frame will mount to any original GI or WH receiver. The Phila Ord receiver, barrel, and grip mount cannot be disassembled, and accept only the Phila Ord bolt. All other parts are GI, or GI spec.

 

Phila Ord sold the complete receiver assembly with bolt all by itself for awhile so that customers could convert a full auto gun or FA parts kit to blank fire. Don't know whether this is still offered or not. You will be very pleased with anything you get from Phila Ord.

[reconbob]

Yes, the receiver and barrel are permanently attached and cannot be disassembled.

The receiver in addition has hardened steel pins to prevent machining the receiver to

accept an original bolt. As mentioned the entire lower half of the blank gun - trigger

frame and stock assy. is standard G.I.

 

if you want to build a post-sample I recommend you finish one of my 80% machined

receivers. It would be the most cost effective way. On the 80% receiver all of the fancy

footwork - ejection port, feed ramp, etc. is finished so all you have to do is machine the

pocket for the bolt which is straight up and down machining with no special set-ups or

tooling required.

 

Bob/Philly O

[JohnnyRingo12]

Yes, the receiver and barrel are permanently attached and cannot be disassembled.

The receiver in addition has hardened steel pins to prevent machining the receiver to

accept an original bolt. As mentioned the entire lower half of the blank gun - trigger

frame and stock assy. is standard G.I.

 

if you want to build a post-sample I recommend you finish one of my 80% machined

receivers. It would be the most cost effective way. On the 80% receiver all of the fancy

footwork - ejection port, feed ramp, etc. is finished so all you have to do is machine the

pocket for the bolt which is straight up and down machining with no special set-ups or

tooling required.

 

Bob/Philly O

Hey bob,

 

Sent a few emails to see if you offerefd fully machined receivers or still sell completed M1a1s but never heard back.

 

Thanks