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Patriot Defense | 9mm Barrel Reaming (Hard Coating/Melonite/DLC)

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Patriot Defense | 9mm Barrel Reaming (Hard Coating/Melonite/DLC)

Patriot Defense | 9mm Barrel Reaming (Hard Coating/Melonite/DLC)

This service is for 9mm barrels with a hard coating.

We utilize our custom 9mm Match Finish Reamer to ensure we bring your undersized chamber back to SAAMI spec while still maintaining the accuracy you demand. Chamber will be sized properly and the “leade” lengthened to allow a much greater range of projectile and OAL to be utilized. This service will greatly increase reliability in guns with short or no “leade” and has no negative affect on accuracy. Usual turnaround time is less than 24hrs - 48hrs and pricing includes return shipping back to you.


Please mail your barrel to with a copy of your invoice enclosed:


3352 County road 212

Anderson, TX 77830


*Please ensure barrel is clean when sending or an additional cleaning charge may incur. 

*Please ensure barrel is properly packaged when shipped to prevent damage during transit

15 Reviews Hide Reviews Show Reviews

  • 5
    Canik Rival S

    Posted by Ryan S on Sep 1st 2023

    Could not get my Rival SF to run in any configuration. Canik sent me a new extractor and spring, no go, then sent me a new barrel...still no go. I figured Id get Patriot to ream my original barrel.....installed it and the S runs perfect now with any ammo.....well worth it.

  • 5
    Barrel Reaming

    Posted by David on May 25th 2023

    Super quick turn-around and works as advertised!

  • 5
    9mm Barrel Reaming (Hard Coating/Melonite/DLC)

    Posted by William Garland on Apr 8th 2023

    Very fast turn-around. Canik Rival factory barrel will now chamber and function with my OAL 1.35" 147 grain handloads, while retaining the factory barrel's excellent accuracy. Thanks for your great work.

  • 5
    Fast turnaround, so far everything is great.

    Posted by Mario on Mar 24th 2023

    I haven't put a ton of rounds through my newly reamed barrel but as of right now it's accepting loaded ammo much longer than it was before.

  • 5

    Posted by Neil Laspinas on Mar 6th 2023

    I have been having problem using a JHP bullets before it was reamed, now it’s working flawlessly. Service was fast and delivered back to me less than a week.

  • 5
    Hardened Barrel Reaming

    Posted by Robert T on Feb 2nd 2023

    PD returned my email inquiry asking if they could handle CZ Shadow 2 barrels. That's the barrel no one wants to touch - even those who say they can do 'hardened' barrels. They said no problem . I sent mine in and with about a week turnaround time, I can now load out to reasonable length 1.135 - 1.1500 depending on the profile. No detriment to accuracy either.

  • 5
    Shadow 2 barrel reaming

    Posted by CZ Shadow 2 owner on May 22nd 2022

    So I was very happy with the services rendered. The day they received my barrel it was shipped out the next following day. Thanks for getting this typically impossible task done!

  • 5
    Ream/freebore barrel

    Posted by Al S. on Mar 31st 2022

    We all know that many companies in this industry aren’t that great about answering emails/inquiries. Patriot replied to my question about this service the same day and turnaround couldn’t have been faster.

  • 5
    9mm G19 barrel throat too short

    Posted by Andy on Oct 14th 2021

    Would not allow 9mm factory or reload rounds to chamber. PD reamed just enough to allow proper chambering of rounds. Quick turnaround and reasonable cost.
    Would definitely use their service again if needed.