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Just installed tonight

Written on May 18, 2026

If you have ever built an AR or have merely changed out a barrel on one, this thing is a breeze to install. In my case I made it more difficult intentionally, however, because I wished to retain the existing A-2 FSB w/gas port. All you have to do for this to work is to remove the stubborn taper pins first to get the FSB/gas block off in order to put the barrel nut on, and wait to install your gas tube and reinstall your FSB and gas tube AFTER you have already screwed the forend on the barrel nut. (The enclosed instructions will tell you this and it's no major issue). Fits perfectly though with the 10.5" BBL. (This is an SBR that I registered a few years back). This is the one you need to get from Pantheon Arms if you intend to go this route. It looks great and I need to get it out to the range to see how much the zero might have changed on this rifle. I recommend this as an inexpensive option if you want to have your own "take down" AR. I am kind of late to this concept and didn't realize that these QD systems have been out for some years now. But if I wind up liking it, I may just get a few more of these kits at some point.

Missing hardware, no instructions

Written on May 18, 2026

The grip is cool, but is missing the hardware. No instructions, but if you can install a standard pistol grip on an AR then you can do it on this one too, but first you have to get a Cap Screw-type AR pistol grip screw. Luckily I had a few in my AR spare parts bin. Now mine wouldn't fit on my particular weapon because I had a QD buffer tube end plate with the "ears" on both sides to clip on the single point slings, or the HK-type sling swivels. The "Beavertail" that extends just wouldn't let me seat the grip all the way down. No worries, as soon I will be changing everything out on the rear end anyway, as I will be adding a QD stock removal plate/assy. (one of those Stern Defense "rapid attach" buttstock adapters.) This weapon is an SBR that I Form-1'd a few years back and decided to put on the Pantheon Arms Promethius QD barrel adapter and installed that tonight with my 10.5" barrel w/A-2 FSB that was originally on it when it was still a pistol before the Tax Stamp got approved. Anyway, this is going to be a lightweight, simple, "K.I.S.S." - type of gun, The Eotech and heavy RRA A-2 fixed BUIS mount that was on it previously came off, and on goes a light, cheap Magpul MBUIS rear sight (for now). When the folding pistol grip finally gets installed (later) this will be a small, light, and handy SBR that I can also quickly attach a can on as well thanks to my YHM Phantom QD flash suppressor. And can be broken down into 3 small parts and put into something very small and be put
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Last updated 2026-08-17 UTC.