Title says it all. Magblock is retained by the mag catch and uses it's own paddle style catch to release the mags. This particular unit hates my Oly PCR Lower, but loves my PWA Lower. So, it's gotta go! Finish is 95%+. Shows honest usage of having mags run through it.
$30 + S&H, or Make an offer, I also consider trades!
Unit removed. I'll be toying with it further.