Questions about conversion barrel

[bclaus18]

Hey everyone,

I was wondering if I purchase a StormLake drop in 40 to 9mm would I also have to change the recoil spring? Thanks for the input.

 

[1sailor]

The recoil spring is the same.

 

[bclaus18]

Thanks. Is a conversion barrel also ok to use as an EDC? I'm afraid I might like it better.

 

[stainless1911]

Do those barrels have 5 lands and grooves, or 6?

 

[Lost Lake]

Use a factory barrel if you can find one. They are $65 and sometimes you find them on sale for $58. I have never read a problem with anyone using a factory barrel, but I have read about Storm problems.

 

[1sailor]

Yes, I have spoken with a few guys that use the Smith barrels with no problems at all. Midway is out for another month or so but big difference in price.

 

[bclaus18]

So S&W makes a conversion barrel? Or I would just buy the 9mm barrel?

 

[1sailor]

It's just the standard 9mm barrel. Saw a big write up on it here a while back with measurements and everything. I guess the only real difference between the .40 and the 9mm barrel is the hole down the center. You can't go the other way though.

 

[bclaus18]

The regular 9mm barrels aren't listed on midway at all. Did I miss something? I know you said they were out of stock but from what I can see they keep things listed on their site if they're no longer in stock. Thanks.

 

[swoopjr]

Is there anywhere to buy a factory 9mm barrel for the compact? I dont see one listed @midway.

thanks

 

[1sailor]

M&P 9mm barrel part# 150824
M&P compact 9mm barrel part# 730659

 

[swoopjr]

M&P 9mm barrel part# 150824
M&P compact 9mm barrel part# 730659

Perfect, thank you

 

[bclaus18]

Many thanks. I ordered one, probably pick up some compact mags when the tax return comes in.

 

[bclaus18]

Any help locating the 9 compact mags?

 

[wantmoresmiths]

GO to 44MAG.com - Wholesale Rifle and Pistol Magazines on sale for $24.99

44MAG.com - Smith & Wesson - Smith & Wesson M&P Magazine 9mm Compact w/ FR 12 Round

 

[bclaus18]

Thanks, picked up three. I look forward to using my new 9 compact lol.

 

[popo22]

I have put approximately 1000 rounds through my 9mm barrel (M&P .40c) without a single problem and I continue to use the .40 mags with the 9mm's. Rarely the last round will not feed from the .40 mag. but other than that it has been 100% reliable. Our dept. gunsmith (we are issued .40 FS for carry) advised that the dimensions are so close that there is no issue with interchanging them at will, FWIW. Good Luck.

 

[bclaus18]

Wish I would have known that you can put 9mm in a 40 mag earlier. At least I know I'll have no problem with the pistol now.

 

[stainless1911]

Try Storm Lake.

 

[Lost Lake]

Try Storm Lake.

There you go again. Spending twice what you need to.

Standard S&W barrels are $58 - $65. Save the money and buy a standard barrel.

 

[DAdams]

Wished I had known. Sometimes having more money than brains gets the best of me. I bought the SL.

 

[bclaus18]

My mags came in from 44mag today. Now just waiting for the barrel. One and a half months to go! Haha

 

[Football]

These seem to be 40 to 9, can you do the reverse and put a 40 barrel in an M&P9?

 

[1sailor]

Unfortunately no. You can go .40 or .357 sig to 9mm and swap between the .40 and .357 but you can't go up. That was the main reason I held out for an M&P40.

 

[tattooedsurvivaldude]

Does anyone have some updates on .40 to 9mm conversion? Problems? Which caliber do you find you use the most?

I'm searching tons of forums about it, but not really getting any info on any long term affects. I'm looking to purchase my first handgun for HD and range, but I can't afford to purchase 2 weapons. SO, that's why I was considering a m&p .40 for HD and purchasing a 9mm barrel to drop in to take to the range.

Plus, if SHTF...I've got some versatility out there.

Any other info guys?

 

[ArLEOret]

Smith barrels

I called Midway last Monday for a SL conversion barrel. They are on back order till March 7. Can I call Smith for a barrel?

 

[vashagger]

I have an M&P 40C and was wondering could I buy a conversion kit to change it to 9 mm? What would I need to buy? Barrel, spring, new mags?

 

[bclaus18]

All you need is a barrel. You apparently don't need 9 mags as the 40 mags will work with 9mm but it is said the last round might not feed. I went ahead and bought 3 9mm mags anyways.

 

[ArLEOret]

Conversion barrel

I just got off the phone with Smith. The barrels are out of stock for a month.I guess SL is it. Midway said out of stock until March 7.

 

[bsaz]

9mm Conversion (Again!)

I've been following the post here and on other sites for a while 'bout the 9mm conversion so here is my 2 cents. I picked-up a M&P FS 357 Sig. combo that came with the factory 40 cal. barrel, night sights, and three mags a year or so ago. I liked the set-up so much thought I would get a 9mm. so I went the Stormlake route... special... deal barrel and two mags for around $160!. Same issue as some others reported could not even chamber a round, called SL sent barrel back, got new barrel, chambered round, now FTE. Sent barrel back SL said it was in spec., got out the Dermel polished etc. to get it to work; sure was pretty with that shine, but to no avail. Worked great for the first 50-100 rounds. Then FTE. (good practice dealing with FTE's!). Just received my S&W 9mm from Midway, slid right in went to the range, ran 'bout 250 rounds not a problem!! Shots were nice and tight love the feel and cheap shooting! I guess the moral is that some SL barrels fit and some don't! I have not heard anybody say they had problems with a 9mm S&W BARREL with the 357 sig. or 40 cal.?? Guess somebody's specs are off??