Govostes Posted July 10, 2023 Report Share Posted July 10, 2023 Can anyone tell me the Thread size, as I,m Trying to get a Adapter for my Suppressor, witch is a .578x28 . If anyone has a idea were to get one. Thank You Link to comment Share on other sites More sharing options...
Got Uzi Posted July 11, 2023 Report Share Posted July 11, 2023 It might help if you said what suppressor you had as not all mounts for all suppressor brands. Link to comment Share on other sites More sharing options...
Mad Machinist Posted July 11, 2023 Report Share Posted July 11, 2023 .578 x 28 is usually indicative of a 45 acp pistol suppressor with a spring loaded neilsen device required for locked breech reclil operated pistols to function. Please do not shoot your MP40 unless you have an adapter to disable the moveable piston. For a blowback action you'll need a fixed piston adapter for your can. I'll measure the threads on one of my barrels and get back to you. If you were closer I'd say swing buy the shop and we'd make one. Link to comment Share on other sites More sharing options...
Got Uzi Posted July 11, 2023 Report Share Posted July 11, 2023 Many companies make fixed thread adapters for that thread pitch, but what make and model suppressor the OP has is information someone would need to help with this inquiry. Link to comment Share on other sites More sharing options...
buckeye10216 Posted July 11, 2023 Report Share Posted July 11, 2023 Barrel thread measure on the MP40 Beginner posted a topic in The MP38-40 - 43/44 Message Board Hi I am looking for the correct thread measure for the MP40 muzzle threading . I thought it was 15x1 but seems closer to 16mm x 1.5 RH. Can anyone confirm this, or give the "official" measure? Thanks! January 31 19 replies Link to comment Share on other sites More sharing options...
Mad Machinist Posted July 11, 2023 Report Share Posted July 11, 2023 5 hours ago, buckeye10216 said: Barrel thread measure on the MP40 Beginner posted a topic in The MP38-40 - 43/44 Message Board Hi I am looking for the correct thread measure for the MP40 muzzle threading . I thought it was 15x1 but seems closer to 16mm x 1.5 RH. Can anyone confirm this, or give the "official" measure? Thanks! January 31 19 replies I will confirm in the AM, lost the hydraulic power unit on the Haas lathe and forgot to check in the rush to get the lathe back running. Link to comment Share on other sites More sharing options...
Govostes Posted July 11, 2023 Author Report Share Posted July 11, 2023 I believe its 16mm x 1,5 RH, but wanted some advice from the Forum. The Suppressor I,m using is the Obsidian 45. Link to comment Share on other sites More sharing options...
Rekraps Posted July 19, 2023 Report Share Posted July 19, 2023 I have to say I have never seen a suppressed MP40. I was lucky enough to find an original blank firing end cap for my MP40 which is cool. Link to comment Share on other sites More sharing options...
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