DaveG102

I am writing in the hope that someone will be kind enough to answer a couple of obscure technical questions regarding the .22 LR "Thompsons" that were manufactured under the Auto-Ordnance name by either Numrich Arms or, later, Kahr Arms during the late '70's to the end of the 80's :- 1) Is the barrel a push fit into the receiver, hence the locking pin that runs through the receiver extension, or is it a conventional, (extremely tight !), screw fit the same as on .45 ACP Thompsons ? 2) Is the muzzle brake a push fit or is it a screw fit, and if so, does it use a custom thread size the same as on .45 ACP Thompsons ? I would be deeply indebted to anyone who can answer the above two questions for me or tell me where, or from whom, I may be able to obtain the information I desperately require for an engineering project involving an M1927A3 gun. Sincerely yours, Dave B.