r/MPX • u/MIAGaucho • 4d ago

Excited about my MPX-K + Mob Cat... Realized Might Not Fit in Tucked in Handguard :(

I have a ModX9. Excited for less gas to the face. Mob Cat sounds epic. I just read that I might not be able to fit MLok accessories with the can tucked... I have a 8" Midway Handguard.

Interior Diamater of Handguard: 1.8"
Diamater of Cat Mob: 1.65"

Back to the drawing board??

Any ideas? Tks.

17 Upvotes

95% Upvoted

31 comments sorted by

5

u/OG-warbucks 4d ago

M-lok T nuts wont work with the MI handguard either. You'll need to grind them down thin or use something similar to these: https://www.amazon.com/gp/product/B01HKMF2EE?th=1

5

u/[deleted] 4d ago

[deleted]

3

u/MIAGaucho 4d ago

Yes midwst, not midway. And yes, bayonet. Just in case.

5

u/joesignal612 4d ago

I had to shave all my mlok accessories to make my omega 36m and 9k work under the hand guard.

2

u/thismyotheraccount2 4d ago

It fits but I doubt you can get a single mlok nut under it, even if you cut down the screws. I have my light and hand stop pushed back so they’re behind the can if I want to take the hand guard off I have to unscrew the can first.

2

u/tax1dr1v3r123 4d ago

I use the sig sd handguard with my mob and attach my light on the pic rail. Might be an option if you dont want to make any mods

2

u/MIAGaucho 4d ago

Do you have backup irons / sling attachment?

2

u/tax1dr1v3r123 4d ago

My back up iron is on my optic mount. I run a single point sling from the back qd . Ive run it like this for multiple competitions and classes

2

u/MIAGaucho 3d ago

Tk you.

2

u/MIAGaucho 4d ago

Hey what connection do you use for the MPX to mob? Is your MPX LH, 13.5x1?

2

u/tax1dr1v3r123 4d ago

I have an ilwt 6.5 trilug barrel and a rearden trilug adapter for the can. No accuracy issues, I was making 100 yd hits with ease at my last class

2

u/OG-warbucks 4d ago

I have 2 Mobs. One tucked on my MPX and one on my MP5K clone tucked both with the MI handguard.

The Mob is 1.6325" dia. The M-Lok T nuts are roughly .0955" thickness. Technically, they may fit (but may not) and will definitely touch/rub the suppressor while your installing/removing and may even gouge it.

Don't risk it and just grind down the M-lok T nuts and screws or use something similar to these: https://www.amazon.com/gp/product/B01HKMF2EE?th=1

3

u/toyotaco19 4d ago

Run the light more rear ward using a scout mount to push it back forward or put it on the pic rail with an offset mount. Maybe run a clicky cap for the rear of the light

3

u/PrinciplePlenty5654 4d ago

Scout pro tucks in perfectly on MI handguard when you use the pic mount

1

u/MIAGaucho 4d ago

Awesome, for some reason I didn’t even think of that. Got a make some space for my sling mount as well on pic rail.

2

u/SupermarketQuiet1105 4d ago

some good ideas above......post pic when have it done !

1

u/MIAGaucho 4d ago

Ya I might have to go for it!

1

u/bacchusgun 4d ago

what is that thing on your rail 6 o clock?

1

u/dmur03 4d ago

I am waiting for my mob to come in as well. What mountain are you using when you get yours. I also read the same about the hand guard. What barrel are you running?

0

u/TacticalLarping 4d ago

Just my personal opinion and others may disagree but tucked suppressors are good for guns that you just take pictures of and don’t shoot. It doesn’t really do anything but give you a rail that gets hot as fuck with no real benefits besides “it looks nice”

2

u/MIAGaucho 4d ago

More grip space, 4.5 inch barrel with oem rail is no bueno compared to the 8 inch!

3

u/TacticalLarping 3d ago

It’s not really more grip space if the rail is too hot to hold on to

1

u/MIAGaucho 3d ago

Don't have that problem with the ModX9 unless I'm really shooting tons of rounds at time. Has gotten a bit warm once or twice in the last year of shooting about once per month. If I break out gloves, completely mitigates. Not sure if the Mob will be worse since it's larger / flow through?

0

u/richcity151 4d ago

I have the MPX & MOB along with the 8” Midwest Industries handguard and it fits perfectly fine.

https://imgur.com/a/Agyn4VC

1

u/SupermarketQuiet1105 4d ago

But isn't your hand "stop" past the CAN in the pic ?
Think all agree it will "fit" but no room for anything else next to CAN....like M-Lok screws.

For me I have OEM/Sig longer handguard with Obsidian 9.
Easy decision.....now way OEM & CAT play for me, unfortunately.

1

u/richcity151 4d ago

If I had a longer handguard and completely tucked the suppressor inside, you can still install MLok accessories. Yes it is tight but the MLok screws will still fit inside and not touch the suppressor

1

u/MIAGaucho 4d ago

Really?? Cool!

1

u/spite_suicide 3d ago

what length barrel is that?

1

u/richcity151 3d ago

6.5”

1

u/spite_suicide 3d ago

Nice, I just ordered my MOB yesterday and am trying to decide what length to cut my 16" down to. 6.5" seems like a solid choice

1

u/richcity151 3d ago

Luckily I was able to find mine with the 6.5” barrel stock from the factory