Threaded Barrel Ends
- Thread starter Steve227
- Start date
I agree with G37. I had a silenced PPK at one time, and Dr. Dater of Gemtech told me (many years ago, this) that he used different pitches for different calibers. I suppose that's at least one of the reasons why snap-on fittings have become so popular.
I used the same Gemtech suppressor for the PPK (with a threaded PP barrel) and a Browning 1910 (with a threaded 1922 barrel). It was about an inch in diameter and about six inches long. Gemtech did the modification of both guns, which were in 7.65mm and with the suppressor sounded like a .22 short or maybe a BB cap -- pretty quiet, really. I should add that the suppressor was registered with ATF and perfectly legal in the state where I lived. The suppressor was stainless and permanent -- nothing to take apart and no need to clean the innards or replace them. It used about a teaspoon of grease (low-temperature, used for food processing machinery) applied at the muzzle end of the device. Gemtech advised that it was not ever necessary to clean the suppressor. After about six shots the grease was pretty much vaporised out, anyway. They also advised that in a pinch you could use water or urine instead of the grease. I always used the grease.
I never had a snap-on attachment, and so I'm not sure of the mechanism. Apparently there is a permanent fitting on the barrel, near the end. It doesn't seem like these would work on a pistol which had a takedown that involved moving the barrel through a slide which had no removable bushing. I believe they get used mostly, if not always, on subguns and rifles. I think the suppressor has an attaching point that fits over the end of the barrel, and forms a very tight compression lock through use of a spring, against the barrel fitting. Maybe there's a CGN member who's had experience with these. In my brief conversation with Dr. Dater in the early nineties, he told me that they just don't seal as well as the screw-ons and cost a lot more. There are advantages though, like not taking the time to screw on and off the thread protector and then screw on and off the fairly long thread of the suppressor. Also, it allows easier interchange of a suppressor among different weapons. The thread is kind of delicate and you have to be careful it doesn't get dinged. I guess the technical problems of the snap-lock seal have been solved, or at least greatly reduced. Recently that sort of attachment appears more and more common. As to cost, it helps if the government is buying kit for you.
I never had a snap-on attachment, and so I'm not sure of the mechanism. Apparently there is a permanent fitting on the barrel, near the end. It doesn't seem like these would work on a pistol which had a takedown that involved moving the barrel through a slide which had no removable bushing. I believe they get used mostly, if not always, on subguns and rifles. I think the suppressor has an attaching point that fits over the end of the barrel, and forms a very tight compression lock through use of a spring, against the barrel fitting. Maybe there's a CGN member who's had experience with these. In my brief conversation with Dr. Dater in the early nineties, he told me that they just don't seal as well as the screw-ons and cost a lot more. There are advantages though, like not taking the time to screw on and off the thread protector and then screw on and off the fairly long thread of the suppressor. Also, it allows easier interchange of a suppressor among different weapons. The thread is kind of delicate and you have to be careful it doesn't get dinged. I guess the technical problems of the snap-lock seal have been solved, or at least greatly reduced. Recently that sort of attachment appears more and more common. As to cost, it helps if the government is buying kit for you.
