Wait a minute.

Light primer strikes in a Glock 21? Not possible. Except the inner tubes say, “Yes!”.

Most likely cause? Dirty striker channel. Ok, let’s take a look:

Remove, clean, blow out channel.

Yes, swabbing out the channel with a q tip resulted in lots of “schmutz”, black gunk with some metal particles. Clearly enough to cause friction and slow up the striker.

I guess I’ll just have to head back to the range.