Let’s say I have a few gen2 G19s, a few gen2 G17s, a cut down gen2 G17, and a Carbine that will fit mags as short as G19.

Oh, and a G26 from the day they came out. Basically a gen 2.5 for lack of a better word.

An I have a pile of factory mags ranging from precancerous non drop free, Preban drop free, newer factory, and a bunch of the Pmag ones.

I have no gen 3 or gen 4 glocks.

If I go buy a blue label gen 5,
Am I going to be 100% mag compatible?

Mag compatibility is one thing that irks me when companies start messing with it.