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  • Double Diamond Standard Replacement Barrel

Double Diamond Standard Replacement Barrel

$129.99 to $199.99
SKU: 1000
$129.99 to $199.99
GSPC match grade replacement barrels are manufactured from the highest grade 416R stainless forgings. CNC machined and heat treated, providing a lifetime of service and unparalleled accuracy at an affordable price.

Please note: Not compatible with Gen 5 Glocks

Upgrade to an Extended Slide Lock for faster and easier takedown and barrel installation!
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The standard groove and land rifling make this an excellent choice for those who wish to shoot lead, plated or jacketed bullets. Can be used in factory ported or stock pistols.


Special features include:

  • Ready to use, pre-fit, drop-in
  • No gunsmithing required.
  • Precision machined from heat treated 416R stainless forgings
  • Oversized lock-up area produces greater shot-to-shot accuracy
  • Tighter than factory spec dimensions
  • Match grade broach cut rifling and target crown
  • Maximum chamber support
  • Improved feed ramp design
  • Diamond turned exterior
  • Okay to use lead, plated or jacketed bullets
  • Fits Glock Gen 1-4 (does not fit Gen5)
  • Lifetime warranty

Factory warranty will replace any barrels or barrel accessories which are found to have manufacturing or material defects. Customer modifications or the use of reloaded ammunition will void this warranty.


Please note:

In-stock availability of our GSPC barrels may be limited. If your order is time sensitive, we recommend contacting us to verify quantities.


Not available for export outside the United States.


Barrels may only be returned if they are unused and in resellable condition. If the item is defective, ie, does not fuction, we will accept a return within the 30 day period only.

Order Online or Call Toll Free: 1-800-601-8273

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Ratings & Reviews

3 reviews

3 stars
0 reviews
2 stars
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1 star
0 reviews

Double Diamond 9mm barrel for G27 worked flawlessly for me!

by

Just converted my Glock 27 to a 9mm with a Double Diamond barrel. I was very surprised how much tighter my groups were with the new barrel. I used Sig Elite V Crown 124 grain hollow point, Winchester PDX 9mm plus P, and Sig VCrown full metal jacket and Mag tech 124 grain hardball. About 200 rounds of flawless accuracy. I think I found the right barrel from the start. I shot from 7 to 15 yards.

Simple and great replacement barrel

by

I got a black G17 replacement barrel. The accuracy improved 100% and it was a simple drop-in replacement. Cannot say enough about this product. EXCELLENT!!!

Good Group, marginal finish on chamber

by

I purchased 2 9 mm DD barrels in black recently (couple months ago) and I will give 4 stars but not 5. I installed one barrel in a factory slide and within the first 10 rounds I have obvious wear points on the outside of the chamber, along the edges, shiny spots where the black was scrapped off. Feels like the square corners are sharper than factory barrels. The groups are tight but not impressed with the finish work. Never had this on the 3 factory barrels I have.