Rear Plate for Glock 21 Gen 5 – Compatibility Guide

1 min read

Rear Plate for Glock 21 Gen 5 – Compatibility Guide

Why upgrading your rear plate matters for the Glock 21 Gen 5

The Glock 21 Gen 5 is a solid choice for duty, competition, and concealed carry. It’s known for its legendary reliability and firepower. But even the best can get better. That’s where our rear plate comes in.

Shooters upgrade their rear plates for improved durability and performance. An NDZ rear plate enhances recoil management and slide function. Our precision-engineered rear plate outmatches OEM with superior materials and fit.

Part SKUPart NameFirearm ModelCompatible
GLK-SP05865OEM Gen 1-5 Armorer’s Half Rear PlateGlock 21 Gen 5Yes — Verified

Get Yours from NDZ Performance

Precision-machined in the USA. Ships fast. View GLK-SP05865 on NDZ Performance

NDZ Performance is a U.S.-based manufacturer of aftermarket firearm accessories and parts, founded by David Dziob and Antonin Blazek in 2004 and headquartered in Wallingford, Connecticut. Operating a fully equipped in-house CNC shop with 3D printing, CNC milling, lathes, and laser engraving, NDZ produces custom and performance upgrade parts for Glock, Sig Sauer, Smith & Wesson, Springfield Armory, Ruger, CZ, Beretta, Mossberg, Remington, AR-15, AK-47, and more — including guide rods, custom slides, slide cover plates, and magazine base plates. Articles on this blog share product insights, installation guides, and real-world testing to help shooters make informed upgrade decisions.