What's the Purpose of Threaded Barrel - MP-Pistol Forum

What's the Purpose of Threaded Barrel

This is a discussion on What's the Purpose of Threaded Barrel within the MP Reference forums, part of the Smith & Wesson MP Forum category; I just bought a mint 9mm FS from a LEO who wanted a 9C. This is going to be the basis for a USPSA Limited ...


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Old September 11th, 2011, 01:24 PM   #1
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I just bought a mint 9mm FS from a LEO who wanted a 9C. This is going to be the basis for a USPSA Limited minor gun. Question is, it has the extra half inch or so of threaded barrel. I'm going to replace it with a KKM precision 4.25 barrel, but I wondered what the purpose of the origional threaded barrel with cap, was. Silencer? Compensator?



Couldn't find weapon on S&W, so I'm assuming it's discontinued. Any history, or answer is appreciated.



Thanks,

J.
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Old September 11th, 2011, 02:07 PM   #2
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yes, to add a suppressor or a comp.
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Old September 11th, 2011, 04:47 PM   #3
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The S&W Factory threaded barrel was marketed a few years back as the "Spec Ops" model, intended for a suppressor. Of course most just remained threaded with it's cap, since obtaining a suppressor is a long, difficult, expensive legal process.



The ONLY reason to run a compensator on and M&P, would be if it were built into a full USPSA Open gun, which there are VERY few M&Ps, since Carver only started producing comps for the M&P a few months ago.



Even with a licensed suppressor on the gun, the factory M&P sights become useless, as they don't clear the barrel of the suppressor... which makes the threaded barreled M&P kind of a half-conceived marketing flop, that really only sold to Mall-Ninjas with starry-eyed fantasies about an uber-cool suppressed toy.



JW
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Old September 11th, 2011, 05:06 PM   #4
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Yes supressor or comp
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Old September 11th, 2011, 05:15 PM   #5
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Don't throw it away though. Send it to me. Lol
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Old September 11th, 2011, 05:49 PM   #6
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LOL, nah, don't need a supressor, don't even know (or care) if they're legal here, and sure as heck wouldn't jump through the hoops to get one. Don't need a comp either. I sort of figured that had to be what it was for, I certainly couldn't imagine anything else you'd hang off the end of a barrel.



J.
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Old September 11th, 2011, 08:34 PM   #7
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If the extra 1/2 inch doesn't disqualify it for the chosen class I would leave it as is and shoot the dickens out of it. Put the cost of a replacement barrel into the ammo fund jar.
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Old September 12th, 2011, 12:59 PM   #8
 
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"obtaining a suppressor is a long, difficult, expensive legal process"



Not exactly Jeff, it can take a little while for your paperwork to clear the ATF depending on when you send it (wait gets long right after a democratic President is elected), but it is not any more difficult than filling out a couple forms and writing a $200 check to play. Just another legal form of firearms enjoyment (depending on the state you live in of course).
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Old September 20th, 2011, 06:36 PM   #9
 
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If you decide You want to sell it, put me on the short list for buyers. I need one to run a can and have been haing a lady of a time finding one.
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Old September 20th, 2011, 08:06 PM   #10
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Quote:
Originally Posted by TOPO-sniper View Post
"obtaining a suppressor is a long, difficult, expensive legal process"



Not exactly Jeff...


You say it's not, then you start in with a long, difficult, and expensive process but skip a couple of the most egregious steps. We've been through it twice and it's more hassle than Jeff is letting on.



By difficult I mean being fingerprinted and photographed by the local Sheriff, answering over 100 questions that are 60% public knowledge, 40% invasive, but 100% none of their freaking business. The second time was through our corporation so LE wasn't involved, and I don't have to be there when family members want to use it, downside is it stays with the company when/if we sell.



Of course the big upside is we no longer feel it necessary to go to a range to shoot. We can enjoy our M&P anywhere where it's lawful and safe to do so, ears free, without disturbing anyone (at least not disturbing them very much anyway).
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Old September 22nd, 2011, 07:57 PM   #11
 
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Even with a licensed suppressor on the gun, the factory M&P sights become useless, as they don't clear the barrel of the suppressor... which makes the threaded barreled M&P kind of a half-conceived marketing flop, that really only sold to Mall-Ninjas with starry-eyed fantasies about an uber-cool suppressed toy.



JW

[/quote]



Usually true, where you need to replace the standard sights with taller sights but Silencerco has the Osprey cans which allows you to use your factory sights.
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Old September 23rd, 2011, 02:30 PM   #12
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Quote:
Originally Posted by optiontrigger View Post
Silencerco has the Osprey cans which allows you to use your factory sights.
I read that in their marketing materials, but the factory .160" sights on the M&P40 were too short for their Osprey model circa ~2007-08, so we went with BTC sights for the extra .050" or so. The 9mm Osprey may sit lower due to the smaller caliber, I've heard it clears but can't necessiarily prove it.



Nice silencer, BTW. Eventually we'll get an adapter for the 9mm/357Sig barrel so the kids can sling some 9mm downrange (they're so light, they don't handle the S&W40 very well).



Edit: I should add that if you're shooting a can at night it's fairly easy to "shoot through" the silencer by viewing the night sights with one eye and the target with the other (simplified). My buddy does it during the day with his GemTech on an M&P40 w/factory .160" sights, but my eyes don't do that very well because I find myself focusing on the front sight.
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Old September 28th, 2011, 04:09 AM   #13
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I have Osprey 45 for my M&P 40FS, The front sight do not clear my cans, I have Bowie Operator night sight, It shot 5 inch low in point of aim at 10 yard, Hope someday someone will make a taller night sight set.



Here we go http://www.youtube.com/watch?v=a92jdEGhIyU
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Old October 1st, 2011, 06:58 AM   #14
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VTAC sights are certainly taller...



Dawson Precision has tall sights...

http://www.dawsonprecision.com/Categ...d+Front+Sights
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Old November 10th, 2011, 05:22 AM   #15
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My 9 pro with an AAC tirant 9



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