PX4 .40 s&w magazine extended from 14 to 17 rnds
10 out of 10 people found the following review helpful
I purchased three of these last year, and have run thousands of rounds through my PX4 with these. They work perfect, no issues at all. They are easy to assemble/install. They have hit the ground partially loaded, and empty during fast magazine reloads with no breakage. Seem to be holding up great.
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