Two Recoil Buffers in 1928A1 - Is that Acceptable?

[Grease Gunner]

Just received a WWII Auto Ordnance 1928A1( will post pics tomorrow) Stripped it down to see if it was clean and it was but noticed two recoil buffers behind the pilot and pondered whether I should leave them in or not. Seller said it ran like a sewing machine so maybe I should shoot it as it is, Any input would be appreciated.

 

 

Looks Like This Saw British Use. Will Post More and Better Pics Tomorrow

 

Edited May 22, 2018 by Haris357

[gijive]

It was designed to function with one. I would take one out and keep it as a spare.

[azboater]

It seems the obvious answer would be take one out and replace the spring.

maybe it runs like a top with 2 buffers because the spring is too short

[Grease Gunner]

will the second buffer make it run faster or slower? I will take it out and test it

[huggytree]

1 buffer....and replace the spring since the gun is new to you...i always replace the main springs and buffers on every new gun

[Bridgeport28A1]

Are they the older WW2 hard buffers? I cannot tell from your photo.

[GaryKeim]

The extra buffer has the effect of increasing the spring tension. More tension, faster cycle.

[Colt Chopper]

Take one out and test fire. If it has issues cycling then replace the spring.

[Adg105200]

It would probably be a good idea to put the WW2 ones in storage and get a new made polyurethane buffer.

 

Andrew

[Orion]

I would recommend replacing the original buffer with a neoprene or polyurethane buffer that are available. The original buffer could disintegrate while shooting due to its age and the material. I had this happen to my 28 while shooting it with the original buffer.

[LSU Tiger]

Where can polyurethane buffers be found?

[TD.]

I believe PK has the best on the market.

[PK.]

The use of two buffer discs will preclude the sear from engaging the first bite in the bolt and cause it to function on the second bite, which is sized and placed as a safety feature, not a primary working surface.

[Grease Gunner]

There is a seller on Gunbroker who sells 1928 Thompsons assembled with Phila ordance receivers with WW2 parts kits and offers two buffers. Here is verbatim their claim.

 

Once again it is manufactured using original WWII parts. The recoil spring has been replaced with a brand new “Wolf” spring to give you years of trouble free operation. The original fiber buffer washer is included as are 2 modern manufactured Urethane buffers. The red urethane buffer mimics the original rate of fire; the black urethane buffer increases the cyclic rate to 1921 fun levels!

 

They are called Rat-worx USA in Illinois Yes my red bufffers are older WW2 ones

Edited May 23, 2018 by Haris357

[Adg105200]

I've seen that claim before, I wonder how true it is. Most places that sell Thompson parts will have polyurethane buffers. A few places that have- Sarco, Gun Parts(Numrich), Black Jack Buffers, of course PK as listed above. I'm sure there are others.

 

Andrew

[full auto 45]

Did somebody say they needed RECOIL SPRINGS?

[Merry Ploughboy]

I've seen that claim before, I wonder how true it is. Most places that sell Thompson parts will have polyurethane buffers. A few places that have- Sarco, Gun Parts(Numrich), Black Jack Buffers, of course PK as listed above. I'm sure there are others.

 

Andrew

 

SRT also used to have polyurethane buffers for the 1928 Thompson for sale.

The thing about polyurethane buffers is that they generally last a long time (unless something else has gone wrong) so once one is installed, the 1928 Thompson market shrinks accordingly, and fewer vendors are willing to participate when their resources can be utilized pursuing on going and/or growing markets.

MHO, YMMV, etc.