HKP +5 HK USP45, HK Mark 23 Magazine Extension - Black

$52.95
(5 reviews) Write a Review
SKU:
HKP-18347
Firearm Model:
HK USP45
Firearm Model:
HK Mark 23
Caliber:
.45 ACP
Magazine Capacity:
5
Color:
Black
Material:
Aluminum
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HK USP45, Mark 23 magazine extension +5 adds five additional rounds to the full-size HK USP45 & Mark 23 12 round magazine.Super easy to install, simply add the mag extension to your existing mag body and follower. An easy 2 min swap. No gunsmithing needed.Made 100% in the USA out of aircraft grade hard coat anodized aluminum & steel hardware. Ultra low profile, & rock solid. This offering is simply the finest +5 mag extension for your HK USP .45 & Mark 23 firearm available. With the addition of the +5 mag extension, the round count in the magazine will increase from a 12 round magazine to a full 17 rounds. Ideal for competitive shooters, concealed carry, or for everyday use while at the range.Fits the USP 45 & Mark 23 .45 12 round magazines:
  • HK USP 45
  • HK USP 45 Tactical
  • HK USP 45 Expert
  • HK USP 45 Elite
  • Mark 23
  • Does not fit the HK45 or HK45 Tactical (although we do offer a +3 for the HK45 model)
  • Will not fit or work with the 10 round USP45 magazines

5 Reviews Hide Reviews Show Reviews

  • 5
    Installs easy looks great, I need to order more.

    Posted by James Boring on 30th Jan 2023

    Installs easy looks great, I need to order more.

  • 5
    This 5rd extension is so fantastic that I'm tempted to change all my 12 rounders into 17 rounders. I...

    Posted by Davidjcrown@yahoo.com on 7th Dec 2022

    This 5rd extension is so fantastic that I'm tempted to change all my 12 rounders into 17 rounders. It's a little pricey but absolutely worth it.

  • 5
    I wanted to extend my mk24 mags and these work perfectly. Easy to install and built like a tank. 12r...

    Posted by Edward on 23rd Feb 2022

    I wanted to extend my mk24 mags and these work perfectly. Easy to install and built like a tank. 12rd mags now accommodate 5 more, perfect upgrade.

  • 5
    It came with a longer spring. I had some issues with it initially, including the magazine becoming u...

    Posted by Chad on 18th Jun 2021

    It came with a longer spring. I had some issues with it initially, including the magazine becoming unseated when firing. I had the HK45C extended mag release installed on my USP 45, so I swapped the mag release back to smaller one that is correct for the pistol. That solved all the issues and the extended magazine/ pistol has been flawless since.

  • 5
    Solid extensions, lockup nice and tight on my Mk23, haven't had any feeding issues thus so far, will...

    Posted by A_Blind_Man on 5th Sep 2020

    Solid extensions, lockup nice and tight on my Mk23, haven't had any feeding issues thus so far, will update once i get more rounds down the pipe

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