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Posted: 9/15/2011 8:20:16 PM EDT
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So I started my research into buying my first suppressor for my Sig P226. I had already seen barrels at the
gunshows that were already threaded and knew that Sig sold them on their webpage. The class 3 dealer told me that the suppressor is threaded 1/2" x 28, and that that was the standard and that's what handguns if they are threaded and ARs (without the flash hider) are. Now I get home and check Sig's webpage and they list barrels as M13.5 x 1 LH for suppressors and 13.5 x 1mm LH. And for the P220, it is listed as .578 x 28 TPI. But on the dropdown menu, there is only one choice for the P226 9mm. So what exactly is going on? 1 inch = 25.4mm, so 1/2 inch = 12.7mm –– not quite 13.5 1/2 inch = 0.500" –– not quite 0.578 M = metric? In the end, my goal is to have one 9mm suppressor that I can use on as many 9mm firearms that I can. Is that possible or even realistic? Thanks in advance for any and all help! |
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You will find a varying amount of thread pitches depending on the source of the barrel.
In the US - 9mm barrels are mainly threaded 1/2 x 28 RH Across the pond - 9mm tends to be threaded 13.5 x 1 LH Same thing with 40 S&W - 9/16 x 24 vs 14.5 x 1 lh 45ACP - .578 x 28 vs 16x1 LH If your suppressor is threaded 1/2x28 - just get a Storm lake drop in barrel threaded in 1/2x28 What kind of suppressor is it? |
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Thanks to both of you for the info, especially about Storm Lake.
As to what kind of suppressor, there is none yet. Still have to get my corp done first. I'm just in the very beginning of my research phase since I know absolutely next to nothing about suppressors. But now I am kind of perturbed... When I looked at Storm Lake distributors, the class 3 dealer I visited was one of the ones listed. And I asked every question I could think of to ensure proper fit / compatibility and the option of switching between different 9mm firearms, as well as .22 and .223/5.56. He just told me that 1/2" x 28 was a standard for all those calibers, and that I shouldn't have to worry about whether it will fit or not. Now I find out that my favorite firearm is NOT (factory) standard, and I would not be able to switch between different firearms OR I would not be able to use it on my favorite 9mm unless I bought an aftermarket barrel. And he wasn't exactly the most patient with my questions either even though traffic was light in the store, and there were others in the store to take care of the other customers. I may have to look elsewhere. Thanks for the info on GemTech Multimount. Looks like viable options. Not sure what adapters to use. Could add $50-150 to the total cost though. Sorry if all of this is elemental to you all –– I'm really new at all of this. Thanks again for the advice! |
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After watching the videos on Silencerco's website, I started thinking along the lines of their 45/40/9 Osprey.
I didn't know things like that were possible. Like I said, I'm in the early stages and know very little. My original intent was to buy 3 separate caliber silencers. Maybe my initial reference to using them on different firearms wasn't clear enough. I didn't want one to do multiple duty on different calibers though I am impressed with the Osprey 45/40/9. To answer your question, I'll start with one for a Sig 226 9mm and an AR-15. I currently have a Sig Mosquito .22, but until I can get it functioning a lot better with regards to FTEs and FTFs, I'll go with something else. |
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OP,
Don't worry about it too much. You'll probably have a hard time getting ALL your guns to have the same thread pitch, especially if you buy them threaded from the factory. I know it costs extra money (probably around $75), but you can buy extra boosters for your suppressor that are threaded in different pitches. If you ordered the can with a 1/2x28 thread pitch, you can also get a booster that is threaded 13.5x1 to use on the SIG. If you don't have threaded barrels for your other guns yet, I would suggest looking at standardizing them all around the metric thread pitch. The LH threads are less likely to come loose during firing. If you haven't ordered the can yet, and don't have other threaded barrels (other than an AR), I would order it with the metric thread pitch and get the barrels to match. You can get a piston that is threaded 1/2x28 along with the fixed barrel spacer and be good to go on the AR. |
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