Matrix Arms 9mm Glock-Style Lower Receiver (Non CA Compliant)

Manufactured by Matrix Arms
4 Reviews


Out of Stock


Out of Stock

Items that are regulated by the ATF have restrictions and requirements: 
•Your entire order will ship only to a Federal Firearm License holder.
•Current processing time can be 1-3 days.
•A copy of your order/invoice as well as the current FFL license for your local dealer must be emailed to


The Matrix Arms 9mm Stripped Lower is a dedicated 9mm lower designed specifically for use with Glock magazines. Featuring Matrix's patent pending last round bolt hold open, this 7075-T6 aluminum lower contain's Matrix Arm's unique driveshaft mechanism that ensures an even 1:1 ratio on both ends of the driveshaft ensuring perfect reliability and lasting durability of the last round hold open system. This "stripped" lower is coming with the proprietary, hard to find 9mm bits pre-installed, allowing the rest to be finished from a standard MIL-SPEC lower parts kit.

Note: Not California compliant, this lower features an integral magazine release.


BrandMatrix Arms
Caliber Marking9mm Luger
FinishHardcoat Anodized
Receiver Material7075-T6 Aluminum
Trigger Pin DiameterMIL-SPEC .154

Ratings & Reviews

4 reviews

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Meh at best.

by -

Overall it’s ok, item paired well with ghost 9mm upper and fm bolt carrier. Front take down hole had left over material in it I had to remove with a drill bit and the ejector is held by a screw that looks like a amateur installed it. Horrible fit and finish on the screw. I would buy again for a budget build.

First class fit, finish, and function

by -

Fit, finish, and function- this lower has it all. I successfully used a New Frontier Lower on my first 9mm build and had been very happy with it until I did a .40 S&W build that had the last round bolt hold open feature. I was so spoiled by the LBHO that I decided to do another 9mm build using this lower specifically for that feature. The LRBHO does in fact work every time. Did I mention this a a great looking lower? The lower is a perfect color match to the Aero Atlas S One Handguard and Kaw Valley Precision slick side upper I used. Total quality, and not one hiccup.

Matrix Arms 9mm

by -

This is my first 9mm AR build an so far so good.nothing bad to say about this lower.function like it's suppose to.LRBHO works perfect.I highly recommend it and will be buying another!

Matrix Arms 9mm is legit


This lower has been awesome. I was lucky enough to find the combo on sale, and have not regretted the decision one bit. The LRBHO feature has been 100%. Features, quality, and performance for a lower cost than others.