You guys would be better off just dropping a stock S&W 9mm barrel in your .40 like so many others have done on this forum. None of them have had all these problems, or at least they haven't posted anything about problems....
Storm Lake 40-to-9 Compact Conversion Barrel
- Thread starter f9dak9
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Not sure who you refer to as "so many others" I'd like to hear more about it from them here. Maybe they can share their experiences here. How bout you Lost Lake, how has your S&W9 barrel worked in your 40cal?
As for the people having trouble with the S\L barrel, that stinks and I for one am disturbed to hear this. My 9mm conversion has been excellent, had a couple hiccups in the first 50 rounds or so, but has been flawless since. Not sure about my Sig357 yet, not enough rounds through it. But have had zero problems.
I'll do the search for you, happy to help. Here's one of my favorite write ups, but there's plenty more, just ask me to search for them for you if you would like, I know how to use the search function and I enjoy helping you out in any way I can! 
http://smith-wessonforum.com/smith-wesson-m-p-pistols/170963-test-9mm-factory-barrel-m-p-40-a.html
There is a post where a fellow called and asked S&W if he could use the stock 9mm barrel in a stock .40 and the S&W rep said he couldn't verify it would work, then the rep said "wink, wink" which I take as "yes it will work just fine", but you can take it any way you'd like. Please let me know if you'd like me to search for that thread for you and I will do it, I just love doing research for folks that are really busy or don't feel comfortable using the search function. Hey it's just me, I'm okay with it, really!
Of course if you are in any way uncomfortable using the S&W 9mm barrel in the S&W .40 gun, then I wouldn't do it. For only about twice the price the Storm conversions have worked most of the time and except for a bunch of jams and misfeeds, they seem to be okay, also their customer service while replacing bad barrels is just great folks here say. Just call them up and they will send a ticket for the defective barrel. You just can't beat that kind of service!
Happy shooting!
http://smith-wessonforum.com/smith-wesson-m-p-pistols/170963-test-9mm-factory-barrel-m-p-40-a.html
There is a post where a fellow called and asked S&W if he could use the stock 9mm barrel in a stock .40 and the S&W rep said he couldn't verify it would work, then the rep said "wink, wink" which I take as "yes it will work just fine", but you can take it any way you'd like. Please let me know if you'd like me to search for that thread for you and I will do it, I just love doing research for folks that are really busy or don't feel comfortable using the search function. Hey it's just me, I'm okay with it, really!
Of course if you are in any way uncomfortable using the S&W 9mm barrel in the S&W .40 gun, then I wouldn't do it. For only about twice the price the Storm conversions have worked most of the time and except for a bunch of jams and misfeeds, they seem to be okay, also their customer service while replacing bad barrels is just great folks here say. Just call them up and they will send a ticket for the defective barrel. You just can't beat that kind of service!
Happy shooting!
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Ok Lost, thanks for the effort, but there was nothing, zero, zilch there... the op did it, posted once and nothing since... so that was a wasted look... ok, back to you, what is your experience... you seem to know what up, give us your experience. You have a 40 with a SW9 barrel right?
I'll do the search for you, happy to help. Here's one of my favorite write ups, but there's plenty more, just ask me to search for them for you if you would like, I know how to use the search function and I enjoy helping you out in any way I can!
http://smith-wessonforum.com/smith-wesson-m-p-pistols/170963-test-9mm-factory-barrel-m-p-40-a.html
There is a post where a fellow called and asked S&W if he could use the stock 9mm barrel in a stock .40 and the S&W rep said he couldn't verify it would work, then the rep said "wink, wink" which I take as "yes it will work just fine", but you can take it any way you'd like. Please let me know if you'd like me to search for that thread for you and I will do it, I just love doing research for folks that are really busy or don't feel comfortable using the search function. Hey it's just me, I'm okay with it, really!
Of course if you are in any way uncomfortable using the S&W 9mm barrel in the S&W .40 gun, then I wouldn't do it. For only about twice the price the Storm conversions have worked most of the time and except for a bunch of jams and misfeeds, they seem to be okay, also their customer service while replacing bad barrels is just great folks here say. Just call them up and they will send a ticket for the defective barrel. You just can't beat that kind of service!
Happy shooting!
Will this work for an M&P Pro as well?
I have an M&P Pro in .40 and i'm looking for a Barrel config to shoot 9MM in my IPSC matches,please ANY LIGHT YOU CAN THROW ONTO THIS WILL BE APPRECIATED.
Also do you guys know where can i buy such a barrel?Please let me know
Knochen
Member
I ordered my SL 9mm conversion barrel on Apr. 6, received it Apr. 17. Since it was not machined correctly, I sent it back to SL on Apr. 18. I received it back May 2 with the message that it was re-machined in one area and everything else was found to be within tolerances. I was very anxious to try it, only to find although slightly improved that I could still not pull the slide all the way back or chamber a bullet. Another RA and label was sent to me and I returned it once again today, May 3. My only comment is, do these guys even try their barrels in the pistols they are made for...something called quality control? I wish I had simply ordered a barrel directly from S&W!
Can you order barrels directly from S&W?
Can you provide a number if so?I want to order a 5" in 9MM for my M&P40 and if they're cheap enough i will order one in .357 sig as well.
Any help will be appreciated,thanks...
Knochen
Member
Okay, guys...the final verdict...well, short of firing my pistol!
I finally received my 9 mm conversion barrel today (May 23) from Storm Lake. Third time is a charm! I put it in my .40c reluctantly (not wanting to be disappointed again), inserted the standard sized magazine, drew back the slide....and for the first time ever a 9 mm bullet was chambered. Relieved I continued to draw back the slide until the mag was emptied!
I'm sure it's as it should have been from the beginning. I'm just anxious now to go to the range to confirm there are no jams.
So...to Storm Lake's credit, they twice gave me a RA and mailer and made good on their product.
If I were to do it again, I would most likely simply buy one from S&W as some have suggested. I am not sure of the cost differential. I'm just happy it now appears to work as it should.
I finally received my 9 mm conversion barrel today (May 23) from Storm Lake. Third time is a charm! I put it in my .40c reluctantly (not wanting to be disappointed again), inserted the standard sized magazine, drew back the slide....and for the first time ever a 9 mm bullet was chambered. Relieved I continued to draw back the slide until the mag was emptied!
I'm sure it's as it should have been from the beginning. I'm just anxious now to go to the range to confirm there are no jams.
So...to Storm Lake's credit, they twice gave me a RA and mailer and made good on their product.
If I were to do it again, I would most likely simply buy one from S&W as some have suggested. I am not sure of the cost differential. I'm just happy it now appears to work as it should.
I'm wondering the same thing. I am considering purchasing a M&P 40 pro w/5" barrel for target practice & would like to convert it to 9mm for the range then back to 40s&w or 357sig for home defense. If this works as well for the M&P pro w/5" barrel as they say it does for the compacts then it would be the answer for me. If not then the Glock 35 is in my future. Very interesting. (I bumped the other thread to the top hoping for some more info on this topic.)
Oh, also I am currently running a Storm Lake conversion barrel on my Glock 27 & it has been perfect. I am disturbed to hear that some M&P barrels from them are not up to the standards that I've seen in their Glock barrels. What a shame...
Conversion
Remember if you are shooting weak 9mm in your conversion barrel, you may want to use the 9mm recoil spring assy. The 40 cal recoil spring assy uses a heavier spring. With most 9mm this is not a problem, but with a few brands of 9mm the slide may not cycle fast enough, them you need the lighter spring.
Remember if you are shooting weak 9mm in your conversion barrel, you may want to use the 9mm recoil spring assy. The 40 cal recoil spring assy uses a heavier spring. With most 9mm this is not a problem, but with a few brands of 9mm the slide may not cycle fast enough, them you need the lighter spring.
Hate to disagree with you Mark, but that is not true. The recoil rod assy. is the same for both the 9 and the 40fs guns, same part # 279740000. I can't say that I have shot all kinds of ammo, but I do have the Storm\lake conversion barrel and have never had any kind of problems, been using for about 2 years. I often change barrels in the middle of a range session and it doesn't skip a beat.
Houdini1953
Member
I have two M&P 40's one a compact and one 4.25" full size. For my compact I have a Storm Lake 3.1" 357SIG barrel and it works quite well and is very accurate.
In my 40 fullsize I have a Smith & Wesson full size 357SIG barrel which I just shot this afternoon after getting off work. It also works flawlessly of course at $30 for 50 rounds I do not shoot the 357 that much, and I will state that it is very loud and the recoil is much more than that of the snappy 40, as a matter of fact after I shot all my 357 ammunition, I broke the gun down and put the 40 barrel back in and loaded up with 40 cal 180 grain Winchester White box FMJ and the difference was amazing I remember hey why is there so little kick to this gun and it is not so noisy. Even with ear muffs on I definitely could tell that the 357 is extremely loud, so even if you are not the worlds greatest shot just the powerful blast of a 357SIG at 125 grain is deafening and scary!
In my 40 fullsize I have a Smith & Wesson full size 357SIG barrel which I just shot this afternoon after getting off work. It also works flawlessly of course at $30 for 50 rounds I do not shoot the 357 that much, and I will state that it is very loud and the recoil is much more than that of the snappy 40, as a matter of fact after I shot all my 357 ammunition, I broke the gun down and put the 40 barrel back in and loaded up with 40 cal 180 grain Winchester White box FMJ and the difference was amazing I remember hey why is there so little kick to this gun and it is not so noisy. Even with ear muffs on I definitely could tell that the 357 is extremely loud, so even if you are not the worlds greatest shot just the powerful blast of a 357SIG at 125 grain is deafening and scary!
I have a couple SIGs, a P226 (FS) and a P239 (compact) that each have .40, .357, and aftermarket Barsto 9mm barrels, and I agree about the loudness and snappiness of the .357 SIG. People nearby will sometimes comment about the loudness and long flame when firing the .357 rounds. I hope to get a .40 Shield soon, and then at some point a StormLake 9mm for it. For me I suspect a .357 barrel for the Shield may be a little much, however.
M_E_
Member
The guns are inexpensive in relation to say a Sig or HK. Just BUY another gun!!! You really don't need the 40 anyway. Just run 147+P Federal HST or 124 +P Gold Dots. Both cheaper options for all the trouble!
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