Glock 19 - 17 Round Magazine ( + 2 extension) p229 Does NOT require a metal

Does NOT require a metal button upgrade

If you are looking for a magazine for your CZ 75B

the metal is immersed in a special salt bath and heated to high temperatures

There are only 31 witness holes on the rear of this magazine

Glock 19 - 17 Round Magazine ( + 2 extension) p229 Does NOT require a metalDescription The Glock 19 Plus2 magazine is a composite steel and polymer fabrication. The Glock magazine encases a toughened and hardened steel insert in Polymer ll. This steel insert protects the magazine lips. Invented by Gaston Glock himself, Polymer 2 is a high strength nylon based polymer. As a result, this polymer makes the Glock Magazine incredibly durable. This magazine holds 17 rounds in total Glock 19 Plus2 magazine in Polymer 2 Polymer ll