MP5 tri-lug too fat? - Page 1

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[ARCHIVED THREAD] - MP5 tri-lug too fat?

Posted: 11/19/2014 12:59:24 AM EDT

I have an MP5 with a tri-lug and have been trying to stick my YHM can on the end but the tri-lug is too fat. Maybe by only a millimeter or two but still too big even if you apply significant pressure. I know the tri-lug on the can is fine. I have used it on many other tri-lug (non-HK) barrels with no issues. Thoughts?

Posted: 11/19/2014 9:15:58 AM EDT

[#1]

Sandpaper?Also, you sure it's the tri-lug and not some carbon built up in the blast baffle area?

Posted: 11/19/2014 11:18:18 AM EDT

[#2]

Strip the paint.

Posted: 11/19/2014 12:22:19 PM EDT

[#3]

German gun or clone?

Fairly common with coharies and some other clones..

Posted: 11/19/2014 4:25:44 PM EDT

[#4]

I have a true HK 3-lug barrel as well as a RCM 3-lug... no issues with YHM mount.

Posted: 11/19/2014 5:15:16 PM EDT

[#5]

It might be the thread protector that's too fat; those are easily and cheaply replaced.

Posted: 11/19/2014 10:06:07 PM EDT

[#6]

My cohaire won't allow my 3 lug can to fit, my bobcat fits perfectly, my buddy's bobcat won't fit...

Seems there is quite a bit of variance in the aftermarket world. Thick paint could also be a culprit.

The only other question I'd have for you... Is it a .40/10mm? They look close to the same, but not quite.

Posted: 11/19/2014 11:52:51 PM EDT

[#7]

Quote History

Quoted:
German gun or clone?

Fairly common with coharies and some other clones..

View Quote

German gun (post sample) 9mm.

I will try sand paper. Thanks guys

Posted: 11/20/2014 7:44:51 PM EDT

[#8]

My stamp came in a few weeks ago. Dealer goes in back and grabbed a postie MP5 he has in back. My 3 lug adapter wouldn't fit. He kept trying it and eventually it went on.

Posted: 11/20/2014 8:14:13 PM EDT

[#9]

Quote History

Quoted:
My stamp came in a few weeks ago. Dealer goes in back and grabbed a postie MP5 he has in back. My 3 lug adapter wouldn't fit. He kept trying it and eventually it went on.

View Quote

I had a Coharie that wouldn't accept a 3lug FH. With a little force it got past the "hot spot" and went on.

[ARCHIVED THREAD] - MP5 tri-lug too fat?

Armory » Heckler & Koch

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