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How do you tell if a mpx is a gen 1 or gen 2 ? Looking at one that was born 5-16
 

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The hand guard on Gen. II is Key Mod. Gen. I of MPX does not have a Key Mod hand rail.

The Gen. I magazines have a black follower while the Gen. II has a tan magazine follower.

Bill
 

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Gen II mags have longer 'steel lips' that retain the cartridge in the mag.


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