I have an older style G21 mag with a +2 extension on it. I'd like to pick up a new 11 Coil spring for it so it'd have a bit more "umph" when locking the slide open on empty. All the 11 Coil springs seem to be the new style so I'd need a new style follower as well and wonder if it would work on the old style mag body or not? I figure if I have to buy too many mag parts(spring, follower, maybe a new base plate and insert to get rid of the +2) that I'd have about as much into it as it'd cost to just get a new G21 mag. Also, I could probably just get rid of the +2 and go with a new base plate and insert and solve the "problem" as well. Anyway, just wanted to see what new style mag parts were compatible with the older style mag bodies. Thanks.
Sounds like the $20 dollar hook up isn't going so well. Like the saying goes "if it is to good to be true it is". When it is all said an done you probably could have picked up 2 new 21 mags.
It actually works ok since I tweaked the spring to put more upward pressure on the front of the follower but being as OCD as I am I always want things to be perfect. I could probably use this mag "as is" for the rest of my life and never have a problem but if there's an easy fix to make double sure then I'd like to take it. I honestly think the main "problem" is the +2, if I had the stock base plate and insert the mag would work as the factory intended with the stock spring that's in the mag but the +2 takes so much pressure off of the spring that it needs more "umph" to get the job done now. I'll probably just end up buying a couple factory G21 mags and use this one for a range mag. Either way when I carry I use the G30, 10 round mags since they're better for CCW.
