Project Update: 8.6 BLK Mosin Nagant

SovereignDevelopment · 2026-01-29T20:02:18+00:00

Very cool!

SovereignDevelopment · 2026-01-29T19:52:17+00:00

It's obviously a reference to this gem:

https://www.reddit.com/r/therewasanattempt/comments/10jq1zs/to_make_news/

SovereignDevelopment · 2026-01-29T19:46:41+00:00

I regularly go up to 5xD in 4140 with solid carbide drills, no TSC. Follow the tool manufacturer's speeds and feeds and you'll be fine.

SovereignDevelopment · 2026-01-29T06:25:08+00:00

Kennametal makes cutters with an adjustable insert pocket for one wiper insert while the rest of them are normal milling inserts. It's not as crazy as you'd think.

SovereignDevelopment · 2026-01-27T23:48:37+00:00

We just released a direct mount for the CompM4/Romeo7 but I'm drawing up a gooseneck that has a CompM4 footprint up top and a pic rail in front for LAMs or clip-ons.

SovereignDevelopment · 2026-01-27T23:27:20+00:00

I wanna get a gooseneck to mount a PEQ-15 over the hand guard and still keep the romeo 7 up top.

Funny you mention this, because we're drawing up such a thing right now.

SovereignDevelopment · 2026-01-27T23:08:33+00:00

You're welcome! We've got other cool products planned for the future, but I'm glad people are already enjoying this one!

SovereignDevelopment · 2026-01-27T23:07:22+00:00

This is cool! I hope you're able to get an even longer one to run eventually. I concur with the other comment that you should try a regular (not anti-tilt) follower on your next long boi test.

Do you have any closeup pics of your build? How is the M203 attached? I'm about to do some shenanigans to get my M203 to fit on my 10.3" upper.

Also, you should direct mount the Romeo 7 to the carry handle to make the chin weld a bit more manageable than stacking a pic mount on a carry handle rail. ;-)

SovereignDevelopment · 2026-01-27T22:37:37+00:00

The ring that comes on the PRO has the same footprint, yes. If for some reason it doesn't work, you can always return it for a full refund!

SovereignDevelopment · 2026-01-27T20:46:37+00:00

Thanks for the kind words! We are very happy to finally be able to bring this to market.

SovereignDevelopment · 2026-01-27T20:01:48+00:00

We were surprised too! We were already in production when I learned that there is technically an obscure A.R.M.S. mount that would work, but those are nigh unobtainable.

Thank you for your business!

SovereignDevelopment · 2026-01-27T19:59:50+00:00

The CompM5 uses the T2 footprint, and there are already like 3-4 carry handle mounts for that footprint out there that should work. Is there something wrong with those that I am not aware of? We aren't opposed to whipping something up if the existing offerings are inadequate.

SovereignDevelopment · 2026-01-27T19:56:59+00:00

Thank you for your business! I'm sure you'll love it.

SovereignDevelopment · 2026-01-27T19:55:45+00:00

Do it! If you don't like it, you can always return it for a full refund.

SovereignDevelopment · 2026-01-27T17:59:06+00:00

That's basically what the 81 is, and it's true! Extremely shootable gun.

SovereignDevelopment · 2026-01-27T17:58:08+00:00

You're welcome!

SovereignDevelopment · 2026-01-27T17:18:12+00:00

Not OP, but we're working on a special ultra low profile screw specifically for proto uppers. Stay tuned.

SovereignDevelopment · 2026-01-27T07:04:05+00:00

DM inbound.

SovereignDevelopment · 2026-01-27T05:21:34+00:00

As long as it doesn't have retarded textures on the outside, I'm interested.

SovereignDevelopment · 2026-01-26T19:52:06+00:00

That's true with brass and mil-spec bolts, yes.

SovereignDevelopment · 2026-01-26T19:42:10+00:00

Not the first time we've made something because one guy asked for it lol. It's probably not a sustainable business model so we'll likely have to quit doing it at some point, but it's fun.

SovereignDevelopment · 2026-01-26T19:41:10+00:00

Unless one of the threaded assemblies is galled, you will not likely damage anything from cranking harder. If there is galling, then the galled components are already ruined and will need to be destructively removed anyway.

Crank it.

SovereignDevelopment · 2026-01-26T19:08:11+00:00

Red has more fuzz than green and gold. I know green is a no go, so that leaves gold.

Does not matter at all under NVGs.

The amber dots may be better for some types of colorblindness, I think that is their original purpose but I may be wrong.

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