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Not sure, but this drum is incredibly unreliable. I recommend looking for other options. I hope this helps!

Ralph, it will lock in no issue Sir. However, I would wait on the highly reliable Magpul Glock Drum : https://www.joeboboutfitters.com/Magpul-PMAG-D-50-GL9-Glock-9mm-50rd-Drum-BLK-p/mag-1033-blk.htm