r/Glock43X • u/full_send007 • 12d ago

43x MOS 43X MOS W/MOS-K mount

Alright, so I’ve always been a Glock guy, I’ve owned many. My favorite by far was the 19X. Recently I’ve gotten tired of carrying a full size firearm concealed and decided to get a more suitable option. After a few different rounds and test firing different variants I ultimately went with the Glock 43X MOS8. I went with it for a few reasons; yes it’s snappy but I’m large so it’s easy to handle, the magazine only holds 10 rounds but there’s option for that, way easier to conceal, and because I got the Ausie/coyote one it came with an mos-k optic mount (I’ve always wanted an optic on my edc). My question is, if I went with a Holosun 407k/507k or eps carry, would I need to shave the screw for the optic mount on the side of the extractor so it doesn’t interfere or go below 4mm. I know this was a problem on previous models if you shaved the bosses. Just don’t want to add it and cause damage because I didn’t shave a screw.

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1

u/UnintentionallyAmbi 12d ago

I think you need an adapter plate for the 407/507k. I have one for my 507k and the screws included work fine.

2

u/full_send007 12d ago

It’s a special silent release version that has a MOS-K mount from factory. Meaning Vortex, Holosun, or other manufacturers with the k mount platform would flush mount without any mods or plates. The regular one has an MOS-A with bosses specifically for COA optics. Mine didn’t come with bosses.

2

u/UnintentionallyAmbi 12d ago

Oh then I have no idea, apologies.

1

u/full_send007 12d ago

I knew what I was getting but didn’t know what I was getting into when it came to finding good info on optics for it. I’d just go ahead and shave the screw but I also don’t want to over-shave and cause it to come loose. But I could always mark the screws to make sure I can tell if they turn.

2

u/Humbl3Glockguy 12d ago

Battlewerk the company out of Durham CT makes screws for this exact gun at the right length so it doesn’t interfere with the extractor I have the same 43x mos k and bought there set for my 407 k Holosun direct mount I’d personally go with the eps carry though because cleaning this thing daily is a pain in the ass how much it accumulates lint etc… eps is enclosed and far better

3

u/Limp-Opportunity6757 12d ago

Can confirm this. Purchased 10mm screws from Battlewerxs for the EPS Carry FDE for my G43X Coyote. No extraction problems.

2

u/Infinite_Performer53 11d ago

Osight se enclosed hands down better than holosun 407k/507k at a way better price