Buffer tube question [Archive] - Glock Talk

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Cole125
11-02-2011, 21:09
Gentlemen, quick question here.

I have a CMMG M4 carbine and I would like to get a complete 20 inch DMPS upper with a Nikon M-223 so I can swap the uppers to do long range shooting. Question is, will the 20 inch upper with rifle length gas tube function properly with the carbine buffer tube?

This is the upper I want to get:
http://media.midwayusa.com/productimages/large/486/486925.jpg

WoodenPlank
11-03-2011, 00:40
Gentlemen, quick question here.

I have a CMMG M4 carbine and I would like to get a complete 20 inch DMPS upper with a Nikon M-223 so I can swap the uppers to do long range shooting. Question is, will the 20 inch upper with rifle length gas tube function properly with the carbine buffer tube?

This is the upper I want to get:
http://media.midwayusa.com/productimages/large/486/486925.jpg

Should work fine. I have done it before with an 18" barrel with rifle gas system, no issues.