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MATCH GRADE CONVERSION BARRELS FOR GLOCK® 23

MATCH GRADE CONVERSION BARRELS FOR GLOCK® 23 Reviews & Ratings

MATCH GRADE THREADED CONVERSION BARREL FOR GLOCK 23


The Brownells Match-Grade Conversion Barrel enables you to switch your .40 S&W chambered Glock® 23 to shoot 9mm Luger (9x19mm) ammo AND also improve its accuracy potential at the same time. It fits Gen1 through Gen4 variants of the Glock® 23, and will be a drop-in install on most guns. Each conversion barrel is machined from 416R stainless steel alloy to precise dimensions to ensure a tight lockup and long service life. Button-rifled with 1-10" right-hand, 6-groove rifling that is compatible with inexpensive "practice" ammo that has non-jacketed bullets. The hard Black Nitride finish resists surface wear and stops in its tracks whatever corrosion might try to challenge the stainless steel. Available threaded for (1/2"-28 tpi) to enable installation of a compensator or sound suppressor. Laser engraved with the chambering and the Glock®model it fits.

  • Fits Glock® 23 Gen1 thru Gen4
  • G19-compatible 9mm magazine required to complete the conversion (not included)
  • Extra-strong 416R stainless steel alloy
  • Matte black Nitride anti-corrosion finish
  • Button-rifled 1-10" twist
  • Has 1/2"-28 tpi threads


If you have an old Glock® 23 with a shot-out factory barrel, give it a new lease on life. Swap in a Brownells match-grade conversion barrel and enjoy the gentler recoil AND lower cost of 9mm ammo. Remember: to complete the conversion, you will need to add a Glock®19 compatible 9mm magazine.


DISCLAIMER: “GLOCK” is a federally registered trademark of GLOCK, Inc. and is one of many trademarks owned by GLOCK, Inc. or GLOCK Ges.m.b.H. Neither Brownells nor this site are affiliated in any manner with, or otherwise endorsed by, GLOCK, Inc. or GLOCK Ges.m.b.H. The use of “GLOCK” on this page is merely to advertise the sale of GLOCK pistols, parts, or components. For genuine GLOCK, Inc. and GLOCK Ges.m.b.H. products and parts visit www.glock.com.

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Reviews Summary
The Brownells match grade conversion barrel for the Glock 23 receives high praise for its easy installation, accuracy, and reliable performance. Most users report flawless functioning with various types of ammunition, though a few suggest considering a different ejector for optimal brass ejection. It’s seen as a cost-effective way to shoot 9mm in a Glock 23.
What Reviewers Are Saying
Performance and Reliability
80%
Many users emphasize the exceptional performance of the conversion barrel, noting its reliability with various ammunition types, including brass and aluminum casings. Most reviews highlight no malfunctions after hundreds of rounds, showcasing the barrel's effectiveness in delivering accurate shooting experiences.
Ease of Installation
75%
Reviewers consistently highlight the simplicity of installing the conversion barrel. Most users succeeded with a straightforward drop-in process without needing to change other components, making this feature a significant selling point for potential buyers.
Accuracy
65%
A significant number of reviews praise the accuracy of the conversion barrel, with users reporting impressive groupings and 'tack driver' performance. This consistent feedback reinforces the barrel's reputation as a quality option for enhanced shooting capabilities.
Cost Efficiency
55%
This conversion barrel allows users to shoot 9mm ammunition, which is often less expensive than .40 S&W. Many reviewers appreciate this cost-saving aspect, making it a favorable choice for budget-conscious shooters looking to enhance their G23.
Ejection Issues Noted
30%
While most reviews are positive, a few users mention issues with brass ejection, particularly the tendency of spent casings to hit the shooter. This feedback suggests that using appropriate ejectors may improve the overall experience—a consideration for those looking to optimize their setup.
Quality and Finish
60%
Users complement the barrel's quality and finish, indicating that it is well-machined and aesthetically pleasing. This perception contributes to overall customer satisfaction and the trust in Brownells’ reputation for producing quality firearm accessories.
Need for Additional Accessories
25%
Some reviewers noted the necessity of purchasing additional components, like a thread protector or appropriate magazines, which might be an inconvenience for users expecting a complete package. This theme underscores the importance of clear product specifications.
5
Exceeds expectations
This is an excellent conversation barrel. Ran great and accurate on first trip to the range. Brownells makes good stuff.
Would you recommend this? Yes, I would recommend to a friend
5
Promptly shipped and as described.
Product was promptly shipped and was as described. I have not had a chance to install it in my Glock
Would you recommend this? Yes, I would recommend to a friend
5
Simple as that!
Dropped the new barrel into the G23. Loaded G17 and G19 mags with Remington 115gr FMJ, Hornady 124gr XTP, Hornady Critical Defense 115gr, Hornady Critical Duty 135gr, and Winchester 147gr JHP White Box. Function was flawless with all. Tack driver accuracy. No extraction issues w/ the original G23 kit. Couldn't be happier!
5
Update
This is an update to my previous review on the G23 conv. barrel. I have around 1k rounds through this barrel now and have yet to have a malfunction with it. I did change to a 336 Glock ejector and the 9mm spring load bearing with the original 40 SW extractor which has the most consistent ejection pattern, even better than a 9mm extractor for whatever reason. This barrel is very accurate and reliable. It has no abnormal wear marks or anything else after roughly 1k rounds of various types of ball ammo, steel cased, defensive hollowpoints, you name it. I now carry this pistol as a 9mm with complete confidence.
5
Upgrade to an Old Glock
I have old G23 that has had thousands of 40 S&W rounds fired through it and wanted to use it some more. Ordered this barrel Sunday night and it was in my mail box on Thursday morning. I went straight out and shot 6 magazines of different types of ammo. Very accurate and i had zero malfunctions. I did notice that about every 3rd piece of brass would hit me in the face or chest so i will install a 9mm ejector to correct this issue. The barrel seems to have slighter tighter lockup than the factory barrel and is beautifully machined and finished in black nitride. You wont be disappointed in this product.
5
Just great!
Have a Gen 3 G23 that was very tempermental and failures to feed with things on rail. Known issue. Was going to sell and decided to try this. Very glad I did. Added Glock 9mm mag, 30274 ejector (From 9mm gen 4 housing) and this barrel. Works flawlessly and getting one hole groups at range. Tested with HSTs and 115 target loads. All run like a glock should now with Streamlight 8AG on rail. Very pleased. House gun restored.
5
9mm barrel for Glock 23
This is a excellent conversion barrel for Glock 23. Drops right in and works flawlessly. I fired 300 rounds through it without a hiccup. I would highly recommend this for any G23 owner. Very accurate and cheaper to shoot than .40 S&W ammunition. No need to change the recoil spring either.
5
Good quality conversion barrel
Review after 1 box of CCI 115 grain FMJ ammo and one box of Remington UMC 115 grain FMJ's. Ran through 9mm magazines with no other changes (stock Glock 23 recoil spring, extractor, ejector). No FTF, FTE's. Accurate. Would recommend.
5
High Quality
I bought this conversion barrel for my Glock 23 to take advantage of a plentiful supply of 9mm ammo at a lower cost than .40 S&W. The barrel is nicely finished and drops right in. You do need 9mm magazines for proper functionality. I put about 200 rounds of brass and aluminum cased ammunition in the first session. I had one malfunction with the aluminum cased ammo. All of the brass cased ammo worked fine. Point of impact and grouping appeared similar to the .40 S&W so no sight or aiming adjustment was necessary. As a practice barrel it serves the purpose. I would, however, not use this for critical defensive use except where necessary.
5
Good barrel so far
I put this barrel into a Gen 2 Glock 23 and I shot 100 rounds through it. I fired 50 rounds of Federal HST and 50 of Winchester white box. It functioned perfectly and the fit seems good. Ejection was a bit anemic and I may put in a 9mm ejector to see if that helps but I didn't have any FTEs. I did not need to change the recoil spring or extractor as those were the same for the 9mm as well as the 40S&W.