Smith & Wesson Forum

Go Back   Smith & Wesson Forum > Smith & Wesson Semi-Automatic Pistols > Smith & Wesson M&P Pistols
Forum Register Expert Commentary Members List


Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1  
Old 04-06-2012, 08:20 PM
Member
 
Join Date: Oct 2008
Location: Denver, CO
Posts: 714
Likes: 8
Liked 148 Times in 85 Posts
Default Caliber conversion

Is it possible to convert an S&W M&P compact from 9mm to .40 S&W with just a barrel and mag swap?

Thanks
Reply With Quote
  #2  
Old 04-06-2012, 08:35 PM
Houdini1953's Avatar
Member
 
Join Date: Jan 2011
Location: Hendersonville Tennessee
Posts: 866
Likes: 76
Liked 138 Times in 105 Posts
Default

In short no it is not but in the other case it is from 40 cal to 9mm.

You can buy a 40 and convert either to a 9mm or a 357SIG which is what I have done with my S&W M&P40C using a Storm Lake 357SIG barrel which I just tested this afternoon at the range and was very impressed. I also have a post about why you should buy a compact M&P and most of all a M&P40C for this versatility!
__________________
59,M&P9,40,40C,357,(2)45,G26
Reply With Quote
  #3  
Old 04-07-2012, 10:50 AM
Member
 
Join Date: Oct 2008
Location: Denver, CO
Posts: 714
Likes: 8
Liked 148 Times in 85 Posts
Default

Thanks, I thought the barrels were the same diameter. Appreciate the info.
Reply With Quote
  #4  
Old 04-07-2012, 12:00 PM
Member
 
Join Date: Dec 2011
Posts: 616
Likes: 3
Liked 76 Times in 56 Posts
Default

Barrels are the same but the breech face is different. That's why you can go down but not up.
Reply With Quote
  #5  
Old 04-07-2012, 12:42 PM
Member
 
Join Date: Oct 2008
Location: Denver, CO
Posts: 714
Likes: 8
Liked 148 Times in 85 Posts
Default

Gotcha. Thanks. I have downconverted a couple of Glocksj and a Browning Hi Power, and that's the way you have to do it. Appreciate the help.
Reply With Quote
  #6  
Old 04-07-2012, 09:26 PM
Houdini1953's Avatar
Member
 
Join Date: Jan 2011
Location: Hendersonville Tennessee
Posts: 866
Likes: 76
Liked 138 Times in 105 Posts
Default

As with most weapons especially the M&Ps you can buy a compact and use a full sized magazine but not the other way around.

Had I known what I just said above a few years ago I would have said buy a M&P compact and be happy with your purchase, but no I bought a full size 9 which I love a bunch but had I done it differently then yes that would have been my choice!
__________________
59,M&P9,40,40C,357,(2)45,G26
Reply With Quote
Reply

Tags
browning, smith & wesson, smith and wesson

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
Smith & Wesson M&P Pistols Thread, Caliber conversion in Smith & Wesson Semi-Automatic Pistols; Is it possible to convert an S&W M&P compact from 9mm to .40 S&W with just a barrel and mag ...
Similar Threads
Thread Thread Starter Forum Replies Last Post
Who to do N Frame caliber conversion? Doug M. S&W-Smithing 21 12-05-2011 08:39 AM
caliber conversion Q plainsmantoo S&W-Smithing 0 01-15-2011 12:03 AM
Sigma Caliber Conversion cabreco Smith & Wesson SD & Sigma Pistols 7 11-28-2010 08:58 AM
WTB Caliber conversion for 1911 k-frameguy WANTED to Buy 0 03-07-2010 07:33 PM
M&P Caliber Conversion army_eod Smith & Wesson M&P Pistols 14 01-25-2009 02:24 PM

Powered by vBadvanced CMPS v3.2.3
smith-wessonforum.com tested by Norton Internet Security smith-wessonforum.com tested by McAfee Internet Security

All times are GMT -4. The time now is 12:51 AM.


S-W Forum, LLC 2000-2013
Smith-WessonForum.com is not affiliated with Smith & Wesson Holding Corporation (NASDAQ Global Select: SWHC)