clancelotta Posted September 4, 2022 Report Share Posted September 4, 2022 (edited) I am preparing to restore a sorely neglected Colt Model 1921 AC that has recently resurfaced at a local auction. It's in rough shape - rough enough to merit restoration, but I'm working with very knowledgeable individuals to help ensure that everything is done properly.Toward that end, I am looking for the appropriate Colt era type 1 compensator with a front site. The finish isn't important, but I would like to avoid corrosion and pitting. Please let me know what you have. Charlesgog@mac.com Edited September 4, 2022 by clancelotta Link to comment Share on other sites More sharing options...
BillyDixon Posted September 5, 2022 Report Share Posted September 5, 2022 welcome to the board,, where are you located ? out side US ?,,just askin Link to comment Share on other sites More sharing options...
clancelotta Posted September 5, 2022 Author Report Share Posted September 5, 2022 I'm in Pennsylvania (Lancaster County) Link to comment Share on other sites More sharing options...
BillyDixon Posted September 5, 2022 Report Share Posted September 5, 2022 good find, whats the SN ? so we can enter in data base, is it live ? just askin Link to comment Share on other sites More sharing options...
TD. Posted September 5, 2022 Report Share Posted September 5, 2022 BillyDixon, What data base are you referring too? just askin... Link to comment Share on other sites More sharing options...
BillyDixon Posted September 5, 2022 Report Share Posted September 5, 2022 the book. thompson- an american legend,, and the 2 vol set of doug richardson list of all known SN, the dates made and first shipped,,still a lot of blank spaces, perhaps your gun is listed or perhaps an undiscovered one, which will add to the thompson history. just sayn Link to comment Share on other sites More sharing options...
giantpanda4 Posted September 5, 2022 Report Share Posted September 5, 2022 Is it #2487? Link to comment Share on other sites More sharing options...
clancelotta Posted September 5, 2022 Author Report Share Posted September 5, 2022 (edited) it is 2487... wow! this board is on top of things.The gun went up for auction in my area and I (due to proximity) had the opportunity to take it apart and inspect it before bidding. Very clean on the inside, and it is better than the pictures posted by the auction company, but it does have some significant surface corrosion and loss of finish. I believe that this one is accounted for in Richardson's Book, although it is misidentified as an 1921 A (it is a 21 AC), and its history ends with being shipped to the Arkansas City, Kansas PD in 1933 (I have the rest of the history up to 2022). In the end, it wound up forgotten and neglected for at least 30 years. Charles Edited September 6, 2022 by clancelotta Link to comment Share on other sites More sharing options...
SlickG Posted September 5, 2022 Report Share Posted September 5, 2022 Lucky! I was a bidder, well I thought I was bidding but the auctioneer never checked to make sure online bidding was working before he started ripping through lots.... I called and they could have cared less. Typical of certain auction houses having no business auctioning off rare/valuable stuff, in terms of the cosigner they do a poor job on info, pictures etc... which deters a larger bidding pool and thus they get less money, but a big bonus if you are a bidder that can put there hands on it and know what your exactly bidding. It went over more than what I wanted to spend not being able to see it in person and not knowing what the inside looked like. Glad someone got it and came here to the experts, make sure to come back and post pics if you got any at the auction house while you were there or as soon as the transfer goes through.. would love to see it. I can post the images from the auction house if that would be okay, let me know. Link to comment Share on other sites More sharing options...
clancelotta Posted September 6, 2022 Author Report Share Posted September 6, 2022 Go ahead with the auction house pics. I have others that I can post if anyone is interested. Link to comment Share on other sites More sharing options...
giantpanda4 Posted September 6, 2022 Report Share Posted September 6, 2022 Can you post a few pics of the shot mag that was in the case too? Also, we noted that the front sight was rotated a bit from straight up. Any idea why? I know you do not have the gun yet. Hopefully you are near to it and the dealer handling the sale lets you have visits! Link to comment Share on other sites More sharing options...
Ron Mills Posted September 6, 2022 Report Share Posted September 6, 2022 Clancelotta, did you mean Arkansas City, Kansas? Which of course is pronounced Ar-kansas City (or just Ark City). Just wondering. Looking fwd to pics of the gun. Cheers,Ron Link to comment Share on other sites More sharing options...
Countryboy77 Posted September 7, 2022 Report Share Posted September 7, 2022 (edited) Ron are you a fellow Kansan? Not many know we call it Ark City (though it is Arkansas city) nobody here in south central Kansas calls it that.Just south of Winfield and last City before you cross tge Oklahoma border into Ponca Edited September 7, 2022 by Countryboy77 Link to comment Share on other sites More sharing options...
clancelotta Posted September 7, 2022 Author Report Share Posted September 7, 2022 Some pics of the Shot Mag and compensator in current condition. Link to comment Share on other sites More sharing options...
Ron Mills Posted September 8, 2022 Report Share Posted September 8, 2022 Ron are you a fellow Kansan? Not many know we call it Ark City (though it is Arkansas city) nobody here in south central Kansas calls it that.Just south of Winfield and last City before you cross tge Oklahoma border into PoncaNo sir, I hail from Nebraska. But I traveled a fair amount of Kansas, from Goodland to Coffeeville. Good memories of the Sunflower State. Link to comment Share on other sites More sharing options...
Ron Mills Posted September 8, 2022 Report Share Posted September 8, 2022 (edited) Ron are you a fellow Kansan? Not many know we call it Ark City (though it is Arkansas city) nobody here in south central Kansas calls it that.Just south of Winfield and last City before you cross tge Oklahoma border into PoncaDouble hit reply, apologies. Edited September 8, 2022 by Ron Mills Link to comment Share on other sites More sharing options...
Mad Machinist Posted September 8, 2022 Report Share Posted September 8, 2022 I have several compensators in my parts bin....will look and see if I have the one you need..... Link to comment Share on other sites More sharing options...
clancelotta Posted September 8, 2022 Author Report Share Posted September 8, 2022 Thank you! I really appreciate it! Link to comment Share on other sites More sharing options...
Mad Machinist Posted September 9, 2022 Report Share Posted September 9, 2022 (edited) This is the only one I have that would qualify...all the others have the Cutts logo and are known to be from a 1928. Unfortunately no front sight.Will have to research value.Let me know if this fits the bill....you can call me at Macon Armory478 474-2990 Rudy Edited September 9, 2022 by Mad Machinist Link to comment Share on other sites More sharing options...
TD. Posted September 9, 2022 Report Share Posted September 9, 2022 Rudy,The Colt era Type 1 unmarked compensators have a much smaller diameter for the barrel than the later compensators with markings. If the diameter of this compensator for the barrel is the same as one of the ones you have with a Cutts trademark logo, then it is most likely one of the modern day reproductions. I believe Doug Richardson made an unmarked compensator with the larger barrel diameter. Link to comment Share on other sites More sharing options...
Mad Machinist Posted September 9, 2022 Report Share Posted September 9, 2022 (edited) I have three total, one marked Cutts , .487 ID on the nose, the other two (unmarked and one marked with Thompson logo) measure .477 with a caliper...... And TD, Thank you for the info...I can make 'em run like a sewing machine.....but just getting around to the education on what is and is not correct. So glad I found this board. Edited September 9, 2022 by Mad Machinist Link to comment Share on other sites More sharing options...
TD. Posted September 9, 2022 Report Share Posted September 9, 2022 Mad Machinist,I would be dangerous with a set of calipers! I was away from my books when I originally posted. On page 34 of Frank Iannamico's, American Thunder, Third Edition, the inside diameter given for an marked Colt era Type 1 Compensator is .660 inch with 28 threads per inch. The inside diameter of the later Type 2, 3, and 4 compensators is given as .750 inch with 28 threads per inch. All the reproduction compensators I have seen, including the West Hurley compensators, have an inside diameter of .750 inch with 28 threads per inch. Link to comment Share on other sites More sharing options...
Mad Machinist Posted September 11, 2022 Report Share Posted September 11, 2022 Mad Machinist,I would be dangerous with a set of calipers! I was away from my books when I originally posted. On page 34 of Frank Iannamico's, American Thunder, Third Edition, the inside diameter given for an marked Colt era Type 1 Compensator is .660 inch with 28 threads per inch. The inside diameter of the later Type 2, 3, and 4 compensators is given as .750 inch with 28 threads per inch. All the reproduction compensators I have seen, including the West Hurley compensators, have an inside diameter of .750 inch with 28 threads per inch. I was wondering about the smaller diameter..I was thinking the muzzle end. LOL.....never thought you meant the threaded wnd.....makes perfect sense now. Link to comment Share on other sites More sharing options...
SlickG Posted September 11, 2022 Report Share Posted September 11, 2022 Link to comment Share on other sites More sharing options...
mohawk64 Posted September 11, 2022 Report Share Posted September 11, 2022 That's pretty nice setup. Too bad about the rust. Link to comment Share on other sites More sharing options...
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