J50shootr

Amen.

Thank you Ron.

Great info. I did not know they machined threads in that fashion. The striations between the square thread are what really set off the alarm bells. As beautifully machined as Colts are, I would be shocked that they would manufacture a barrel thread like this. Especially after spending the time and effort on the cooling fins. I will pass. Thank you. James.

Bob. Thank you for your input. Great advice. You guys have reinforced my lack of warm and fuzzy feeling about this barrel. It doesnt look right even to my novice eye. Any thoughts about the tooling chatter between the acme threads?

TD, Thank you for your sage advice.

Hello everyone. I was shopping Thompson parts on GB and came across this barrel. Maybe a member here has it listed. I thought it might be a good investment for a future Colt purchase. I am not real knowledgeable about Colt parts. Does anyone have any thoughts about this barrel before I bid? Thanks James. https://www.gunbroker.com/item/939205549

I was referring to the suppressor adapter as the one gun accessory once it was fitted. I own a Hybrid 46 and run it on multiple hosts. I have no doubt that any of the afore mentioned Thompson smiths would be more than capable of installing it. I wouldnt hesitate to pull the trigger if it was installed by them. I am looking forward to seeing the pics of your finished project.

I may be out of the loop, but this is the first time of heard of this Griffin adapter. Interesting concept. Knowing the precision tolerances that it takes to thread a barrel for a suppressor, I was dubious. After reading the description, it confirmed my first impressions. It is going to take some precision machine work to install correctly to prevent suppressor damage. Looks like it would also be a one gun accessory. They also say that the gunsmith and customer claim all responsibility and its not covered under their warranty. Seems like a costly adventure. There are definitely better suppressor hosts out there. My 2 cents.

In regards to the fix firing pin/ out of battery issue. I dont believe that this issue is related only to an M1/M1A1 with a fix firing pin bolt. It is possible for any firearm that fires from an open bolt with a fixed pin to experience an out of battery detonation. I can think of a bunch of semi/ full Guns that this could be a problem with. For example, Macs, Stens, MK760,S&W76, UZIs, Sterlings, etc.... I think the key here is proper firearm maintenance and shooting quality ammunition. It also doesnt hurt to look at your fire cases after you police them. I would not let this issue be a key factor in your purchase decision. I own an early M1 and run an M1A1 bolt. I have an M1 bolt for the gun but choose to save it due to its scarcity. I personally like to shoot the M1 over the 1928 due to its simplicity and ease of cleaning. My wife says thats blasphemy. Haha. I also own and shoot an MK 760. My 2 cents for what they are worth.

I have a Ciener Basic kit for a 28 Bridgeport. It runs good, but really fast. Like 1200 rpm fast. 3 trigger squeezes and your 30 rd mag is empty. You have to tune the recoil spring to the ammunition you are shooting. Unlike the Merle kits the Ciener bolt body is all aluminum including the sear cuts.

Used kit, but it was a screaming good deal. Runs good so far. 😆

I am sorry. I thought I was helping out the fellow board members that might be interested. I was fortunate to pick up a Merle Kit a couple weeks ago on Gunbroker for $360.00. Trying to pass on the good fortune. 😀

Hello everyone. Knowing the interest in 22 lr conversions. This post is just a heads up for anyone looking for a 22 conversion for their Thompson. This is not my auction and I dont know the seller. It is a Ciener All kit with 2 mags. Auction # 902164010. Good luck.

Hello all. I know this is an old thread. Is Merle still making these 22 kits? I would like to get one for my M1. Thanks.

Thank you to everyone that has contributed. I am going to put it on paper to check accuracy and for round holes. If all is good I will just shoot it like it is. I initially did not want to shoot it like this due to being ignorant of a possible hazard. If I do sell it at some point I will have the barrel changed. What is the going rate to change out a barrel? Thanks. James.

Thank You everyone. The M1 has a mismatched Savage lower and has been stamped with OG left of the serial number. I was told that is an Ogden Arsenal stamp. The serial # is in the 93,XXX range has the un protected L sight and still marked M1 with no A1 stamp . The barreled upper has been parkerized, while the lower looks original. Do you think it would be a good thing to upgrade the recoil buffer with a uerothane buffer? Thanks. James.

Hello All, My name is James and thank you for the membership to this great board. I am an avid collector of all things that go bang, and have been a member of the Sturm board since about 2000. I have just recently wandered over to this board and have been lurking until now. I really like the camaraderie and calm here. I have owned a 28 Savage Bridgeport since 2008 and just a couple of weeks ago brought home an Early M1 Savage Bridgeport. When I purchased the M1 back in June of 2017 the gun was advertised as a shooter. I was aware that the barrel had "Damage" in it and paid lower price accordingly. The ring is in the taper on the back front sight and is hardly visible but can be felt with the fingers. Approximately 3/4" in from the crown, and is a visible shadow when looking down the bore. Otherwise the barrel is in excellent shape with great lands and grooves. When I got the M1 home, I gave it a good cleaning and inspection. There was a lot of lead build up in the ring that constricted the bore, and completely concealed it. Someone had been shooting cast bullets without cleaning it. It took a lot of effort but eventually I scrubbed the 3/8" long lead deposit from the barrel. That being said, I bought this gun to be my regular shooter. I believe I basically have 3 options. 1. Shoot it as is with the ring, and monitor the barrel for any continued degradation. 2. Have the barrel replaced. 3. Back bore the barrel removing the damaged area and leave a deep crown. Options 1 and 3 leave the gun with a lower resale value if I was forced to sell it. I acquired a NOS savage M1 barrel shortly after purchasing the gun. I would greatly appreciate everyone's thoughts on how they would move forward, and or sage advice. Thank you for you time and advice. James.