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  • Why were some glocks made with better steel than others? Was this an option? Ex. Pentagon vs pentagon with a dot?

    Posted by Mateo on November 13, 2021 at 10:37 am

    Why were some glocks made with better steel than others? Was this an option? Ex. Pentagon vs pentagon with a dot?

    Mateo replied 9 months ago 2 Members · 1 Reply
  • 1 Reply
  • ThurstonLast

    Guest
    November 13, 2021 at 10:37 am

    Where did you hear this?

  • voyager40

    Guest
    November 13, 2021 at 10:37 am

    Older Gen3 barrels had a proof mark of a pentagon without a dot on the side of the chamber portion facing the side of the ejection port. The part of the chamber portion of the barrel on top at the front which locks and unlocks from the slide would wear with noticeable loss of steel not just finish wear from as few as 200 rounds put through the gun. The slides of those guns would have noticeable finish wear where that part of the barrel rubbed but not loss of steel from wear, at least not in the amount of rounds the average owner would put through them.

    Later Gen3’s and most Gen4’s had a barrel with a pentagon with a dot inside it as a proof mark in the same location. Those barrels were dark gray melonite finished and would not lose steel from wear after thousands of rounds but would have minor finish wear. The slides seemed the same hardness as older slides.

    Current production Gen3’s and Gen4’s have barrels with a proof mark on the top of the chamber that is a “3D” inside an oval and appear identical in finish and hardness to “dotted pentagon” barrels. The slides seem the same as older slides in terms of hardness.

    While Gen5 barrels share the same “3D” proof mark they are not melonite finished and they have Glock’s “marksman” more traditional rifling. Older barrels had rounded rifling instead of the Gen5 button rifling style. I can’t speak to the hardness of Gen5 barrels.

  • DuWerq

    Guest
    November 13, 2021 at 10:37 am

    I thought this was a just a marking for the rifling? I could be wrong though.

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