MP-Pistol Forum banner

1 - 4 of 4 Posts

·
Registered
Joined
·
13 Posts
Discussion Starter #1
I can fit 18 rounds in one of my M&P9 mags. Will putting that many rounds in wear out the mag prematurely?
 

·
Registered
Joined
·
505 Posts
you need to read the manual that came with your gun....it should state that you should not put more in the mag than its made for... the manual for my M&P 40 says so anyway
 

·
Registered
Joined
·
378 Posts
Yes, in general, if you over stress the spring, it can cause problems later on. I would not do it.



The Walther P99s used to have 16 round mags. But, they discovered that when police officers left the mags loaded over time, they started to have issues. So, they backed the mags down to 15 rounds to ensure reliability. So, just 1 extra round could stress it.
 

·
Site Staff
Joined
·
9,606 Posts
Over loading a mag can sometimes cause feeding problems also.
 
1 - 4 of 4 Posts
Top