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Posted: 12/14/2016 9:28:41 AM EDT
I am looking to pick up some more 17 round magazines and was curious about ProMag reliability or should I stick with S&W originals?
I am looking to add some weighted magazine extensions to them as well. Can you guys recommend some? Best place to buy?
Link Posted: 12/14/2016 10:22:01 AM EDT
[#1]
Quoted:
I am looking to pick up some more 17 round magazines and was curious about ProMag reliability or should I stick with S&W originals?
I am looking to add some weighted magazine extensions to them as well. Can you guys recommend some? Best place to buy?
View Quote

I've never been happy with promag, though I don't have an M&P.  I couldn't find any from Mecgar, which is my go to for aftermarket mags.  I'm on my tablet, though, so I didn't google too much.    I think I would just buy the S&W factory mags. 



Link Posted: 12/14/2016 11:04:58 AM EDT
[#2]
Quoted:
I am looking to pick up some more 17 round magazines and was curious about ProMag reliability or should I stick with S&W originals?
I am looking to add some weighted magazine extensions to them as well. Can you guys recommend some? Best place to buy?
View Quote


I have heard nothing good about Promag and the M&P.

Not sure on the Mecgar.

Grabagun has the OEM for $22

Here are some of the more popular extensions.
I plan on buying 3 of the 140mm kits.
Link Posted: 12/14/2016 2:35:15 PM EDT
[#3]
Taran Tactical are awesome. Wasn't a fan of Arredondo but they're cheap. Tried Taylor Freelance but didn't fit real well because of the rear plate.
Link Posted: 12/14/2016 3:36:38 PM EDT
[#4]
Taran tactical have worked well
Link Posted: 12/18/2016 9:26:22 AM EDT
[#5]
I'd probably wait on deals for the OEM mags - they are priced pretty reasonably.

As for mag extensions, I've run about 3 cases of ammo through my TTI extended mags without issue and highly recommend them. You may struggle to get that 23rd round in early on, but I wouldn't let that stop you - these run well and look cool.
Link Posted: 12/19/2016 3:27:51 AM EDT
[#6]
Mecgar mags are fine in the M&P. Each time we trade out mags at work, the replacements are pulled from a giant Mecgar marked box
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