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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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Decent receiver set. Uses a barrel lockup closer to Colt's 6940 monolithic series, or LWRC'S M6 receiver. Billet receiver set. Neat. It's got a tensioner they're calling "design X" Fuck me, their branding is pure cringe. Gas block has a sealed gas tube, probably similar to KAC, if not a knockoff. it's a very small improvement. Brand X suppressor mount... The fuck is that shit? Plan B, A, or some dumb, proprietary nonsense? No-name 2 stage trigger. Probably a Schmidt. Decent, but for that MSRP, I expect a Geissele. No mention of the charging handle. $2700 MSRP with a standard BCG, and nitride barrel with standard 1/8 rifling. CHF or not, that's a major LOL for a new player, especially with no mention of the barrel manufacturer. An armad equivalent would be worthwhile, but a basic 4150 QPQ? This would be a great choice for under $1600, it's a laugh at $2700. SOLGW's MK1 is a laugh, they at least have gov't contract pricing to blame and socom adoption to market on. Wtf is this shit? |
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Originally Posted By rb889: ...it's a laugh at $2700. SOLGW's MK1 is a laugh, they at least have gov't contract pricing to blame and socom adoption to market on. Wtf is this shit? The Colt Canada MRR would be even better (lighter in the front because MLOK), but they don't seem to want to sell that here. |
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Originally Posted By KitBuilder: Yeah for much less money I can get a Colt 6940 series that's monolithic. The Colt Canada MRR would be even better (lighter in the front because MLOK), but they don't seem to want to sell that here. If only colt would offer the 694x with an extended monolithic mlok handguard and retain the steel cam pin bearing surface in the upper. |
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Originally Posted By EnablerNo1: If only colt would offer the 694x with an extended monolithic mlok handguard and retain the steel cam pin bearing surface in the upper. I’ve been reading about the M5 and it does seem that switching to multiple parts (versus monolithic) was beneficial regarding heat buildup in the forend, and lowering the overall weight of the upper assembly (which is why Colt now favors installing a heavier profile barrel in all the M5 uppers). Maybe I should give it a try? |
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I recall some failures of the steel bearing surface. I like the added bearing surface because it makes for a forever upper if a steel charging handle latch surface is also added. These additions are about the only thing ExeTurd got right on the MCX. The Haenel cr223 did this nicely too. I really like my 6943, though the handguard is a bit short for my liking. The M5 really intrigues me. |
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Originally Posted By EnablerNo1: I recall some failures of the steel bearing surface. I like the added bearing surface because it makes for a forever upper if a steel charging handle latch surface is also added. Originally Posted By EnablerNo1: I recall some failures of the steel bearing surface. I like the added bearing surface because it makes for a forever upper if a steel charging handle latch surface is also added. I Googled and found the specific failures were with LE piston guns (especially suppressed) because the cam was impacting the insert so hard, it could either make the Torx screw loose, or damage its threads. Then the steel insert would get loose and interfere with cycling. So they started additionally using LocTite to secure them. Also if there's any kind of burr where the cam transitions to sliding on the aluminum upper it'll make manual charging feel weird. I couldn't find any issues with non-piston configs, other than people citing that screw as a potential failure point and the insert itself being a proprietary part. It does seem that replacing the insert when it wears out means your upper could last forever. Some people seem to think running a roller bolt cam (like POF) will basically render the same upper longevity along the cam path, but idk. I did swap a roller cam into my Caracal 816 A2 uppers as soon as I got them. I really like my 6943, though the handguard is a bit short for my liking. The M5 really intrigues me. I may want to pick up an M5 upper, unless someone can point to a better value for a similarly performing product. I don't think I need the ambi controls on the M5 lower. I dislike ambi safeties/selectors anyway because I don't like them interfering with my trigger finger on the right side. |
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