Is this a Keymod slot? [Archive] - M4Carbine.net Forums

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camoman

12-24-22, 16:39

MI gen 2 ss rail. I tried contacting MI, but I know they are busy.

https://i.postimg.cc/j5X23vP9/F8-DC7-FF8-5995-43-ED-B25-B-D90-CEFAB1-F2-A.jpg (https://postimg.cc/7G5qf3BM)

titsonritz

12-24-22, 16:45

I'm going to say no, it does not have the angle on the inside of the slot like Keymod

https://commons.wikimedia.org/wiki/File:Keymod_slot.JPG

HKGuns

12-24-22, 16:48

Agreed, I don’t know what that is…..

Jonnyt16

12-24-22, 16:53

That's their new K-LOK rail. Accepts both keymod and M-Lok accessories.

Kidding. I don't know either.

titsonritz

12-24-22, 17:00

That's their new K-LOK rail. Accepts both keymod and M-Lok accessories.

Kidding. I don't know either.

:lol: Had me going for second.

camoman

12-24-22, 20:50

I don’t have a clue what it is. But it does look like about 10 seconds on my belt sander, and an m-lock nut will fit. The slot is just a hair too narrow.
I have never owned anything keymod, so I figured I’d ask before I went with an m-lock hand stop.
Thanks.

HKGuns

12-24-22, 21:10

TexasAggie2005

12-24-22, 21:11

I believe it is to allow an included bipod stud to be mounted.

camoman

12-24-22, 21:30

I believe it is to allow an included bipod stud to be mounted.

The bipod stud threads into any of the threaded holes. I don’t think that’s it.
I wonder if MI was working on a new mounting system, and lost interest? If I remember correctly this hand guard was manufactured around the time that Keymod was in it’s infancy, and I’m pretty
sure M-lock was not a thing yet.
At any rate, a very small amount of material can be removed from an m lock nut, to make it fit.

BufordTJustice

12-25-22, 16:19

That's 100% not KeyMod

Sent from my iPhone using Tapatalk

camoman

12-25-22, 20:27

I hope somebody can confirm what the slot is. This is the only hand guard I’ve ever seen with this slot. I know it has a purpose. I’m thinking it was meant to be another proprietary mounting solution, that just never took off.

mark5pt56

12-26-22, 06:35

I would imagine MI could confirm?

camoman

12-26-22, 09:05

I would imagine MI could confirm?Hopefully. I sent them an email a month ago….still waiting on an answer.

m4luvr

12-26-22, 10:24

MI gen 2 ss rail. I tried contacting MI, but I know they are busy.

https://i.postimg.cc/j5X23vP9/F8-DC7-FF8-5995-43-ED-B25-B-D90-CEFAB1-F2-A.jpg (https://postimg.cc/7G5qf3BM)

i’m going to go with ventilation slots

camoman

12-26-22, 10:59

i’m going to go with ventilation slots
They are only located on the bottom of the hg. There are larger oval slot cutouts on both sides, plenty of ventilation.
I don’t see how having a keyhole cutout, with a slot, as opposed to a larger oval cutout on the bottom would help with ventilation…it has to be some sort of mounting scheme.

camoman

12-26-22, 11:19

It took me about ten minutes with a file to get an mlock finger stop to install.
I haven’t used this hg for years, as it had issues moving forward under recoil no matter how much you torqued it down. MI replaced it years ago with a combat rail, and told me to do whatever I wanted with the old one. So I drilled and tapped a hole in between the two clamping screws, dremilled a divot in the barrel nut, and locked it in with a set screw.
I haven’t shot this build yet, but I don’t think it’s gonna move again.

https://i.postimg.cc/1zpWHJB6/7-B3-DAD64-B021-4-C6-E-BB59-BC42-A766515-C.jpg (https://postimg.cc/1g3cR0L5)

https://i.postimg.cc/L6nN7Hvm/DFAA3-B54-B2-CA-4243-8360-378-D9-CABC0-DA.jpg (https://postimg.cc/ppMf5MgS)

TMS951

12-26-22, 13:55

I think it’s a machining mistake. Especially if the holes are the same diameter as the wider slots.

Otherwise does a qd sling socket go in it?

m4luvr

12-26-22, 16:19

until the company responds i’ll stay with ventilation slots with the added benefit of weight reduction

HKGuns

12-26-22, 16:30

MI has a MFG sub forum. Post the question in there……

Screwball

12-26-22, 16:38

QD mount fit?

camoman

12-26-22, 17:29

QD mount fit?

Yes, and no. It does fit, but doesn’t lock into place.

settingsuns

01-01-23, 10:42

This definitely is not a Keymod

Eazyeach

01-05-23, 15:17

I have the same rail on my first BCM lightweight upper. I never thought about that until now. I hope you find out so you can enlighten me. It came with a couple pic rail sections and a qd sling mount. But I’ve never been able to find any other accessories that fit. Which is fine because I actually don’t stick a whole lot of shit on my rifle anyway. Just a farm gun.

bfoosh006

01-11-23, 19:47

"Maybe"something like this ARCA rail ? I realize this is a long shoot... but , maybe it will help someone's memory.

https://www.shortactionprecision.com/products/area-419-12-keymod-arcalock-rail

HKGuns

01-28-23, 07:27

Well, what is it Camoman?

camoman

01-29-23, 07:52

Well, what is it Camoman?

Still no response fro MI. I will post in the subforum.

curious1

01-29-23, 08:07

Maybe just a hole to drop the large portion of a cutter through to lighten the rail inside the length of the slot or to cut something on the opposite inside.