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Posted: 9/17/2026 9:29:54 AM EDT
[Last Edit: EnablerNo1][Edited]
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I don’t see that this has been discussed yet. They use an extended handguard support boss on the upper receiver where the barrel and handguard do not interface. The handguard only interfaces with the upper receiver. It’s very similar to the Colt M5 design. https://brandxusa.com Here is a video on IG showing the handguard interface and lengthened handguard support boss. |
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I’ve been seeing that on instagram for a while now too, was wondering when it would show up here. “Brand X” just seemed to pop up out of nowhere, and if memory serves correct, about the same time that the SOLGW MK1 was getting publicly released. I don’t think the MK1 uses the same extrusion/receiver to rail interface but the anti rotation tabs on the rail and the upper receiver definitely share visual similarity. Whether or not there is any correlation there I have no idea but it is a neat design, barrel nut indexing off of the shoulder of the barrel. |
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