NDZ Performance Jentra JP7 Grip Frame Insert Plug for Glock Gen 4 20, 21, 40, 41 in 10mm & .45, Black Polymer - Plain

It fit my G20 like perfectly. Solidly in place. So happy to finally see that gaping hole plugged. Thank you for this very simple, but very much needed tiny piece of plastic.

I have a P80 G21 full size and found that no one had a Grip Plug that would fit, even Glock support said they didn't know, I tried a couple 3 and sent them back, Thank You Amazon for that, then I found this one from NDZ Performance, sounded good so took another chance.Order came today, opened the package and thinking again no way and it popped right into place, like it was made for it, fits great, looks great.I never do reviews but I think there's many more friends out there in the same search.This one works guys, the proof is in the pudding LOL.

This is the second plug I’ve purchased for my Glocks - a 17 and this one for a Glock 20 Gen 4. It does two things really well: It adds a FINISHED look to the gun, but more importantly, it makes reloads smoother by filling in the cutout at the back of the magazine well that can catch on the mag when inserted. And if you’re worried about not being able to get a grip on the magazine to strip it out of the gun if stuck, I find there’s still enough room for me to get the end of my thumb between the back of the mag and the plug to remove the mag if need be. All in all, this product is a no-brainer. Good looking, super simple install, and purposeful.

I tried 2 other ones from a different company that claimed they fit a full size glock 21 gen 1-5 they both did not work. finally I gave this one a try and it fit right in.

Very easy to install and looks great.

Flush fitment and locks in as it should on Glock 21 Gen 4. Only downside is that this plug doesn't have the option for laser engraving yet and it's a little on the pricey side compared to the Pearce Grips plug but if you're looking for a perfect look/fit and don't usually use the Gen 4 back straps, this is a must have.

This plug is simple and easy to install. Keeps debris out of the rear grip chamber. Does a good job of enhancing appearance. I put one on both my G43X and G20. The 43X version is pricey (I like my Glock’s), while the more common size, such as this one, is a no brainer in value.

Works as intended. Obvious a Glock design flaw. Glock should have put this piece in when the gun was manufactured.