This is a discussion on M&P Barrel Suggestions within the MP Full Size Pistols forums, part of the Smith & Wesson MP Forum category; I am thinking of putting a 5 in 40 to 9 conversion barrel into my 4.25 m&p 40 core. Will it work? Or is it ...
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|December 6th, 2016, 09:28 AM||#16|
Join Date: Dec 2016
can i and should I
I am thinking of putting a 5 in 40 to 9 conversion barrel into my 4.25 m&p 40 core. Will it work? Or is it better to get the right length unported. Thanks guys.
|December 7th, 2016, 07:11 AM||#17|
Join Date: Jul 2016
These add on red dots are pretty close to the breech... i suspect what is happening is that the smoke is coming from the breech as it opens, then sprays on the glass. Take into consideration too, the loaded chamber slot is open right in front of the glass sights too. You will get smoke blowing up thru that as well. If you`re using dirty ammo, your going to get alot more smoke on the glass. If you want to rule out the lose primer leaking, nail polish the primer to seal it up... but i`ll bet that wont fix the problem. I`m sure there are some slow motion vids on youtube that would show breech gas escaping and might help explain why the glass sights get smoked up. Of course, this is my opinion, so dont be to harsh on me about this subject...lol. If i`m wrong on my opinion, i`ll be the first to say so.
I would also like to add... loose chambers dont seal well... this will always dirty up things very quickly.
And weak ammo wont seal well in the chamber either... so theres more reason you get smoked glass.
Last edited by PaPow; December 7th, 2016 at 07:42 AM.
|December 7th, 2016, 06:47 PM||#18|
Join Date: Jul 2014
Location: east tennessee
get the correct length barrel as the longer barrel will not give accurate positioning in the front of the slide.
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|December 8th, 2016, 07:27 AM||#19|
Join Date: Jul 2016
|December 19th, 2016, 08:20 AM||#20|
Join Date: Nov 2006
Location: Terrace, B.C., Canada
I put the stock 1 - 10 twist barrel in my Pro 9MM and noticed an immediate improvement in accuracy over the 1 - 18 twist the gun came with.. Not sure I would consider an after market barrel given the gun from a rest is far more accurate than I am free style. 15 yards the gun just blows away a 1" circle and I can't hold any better than that.
IIRC I only paid $85Cdn for the barrel installed by the Canadian service centre.
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