S&W M&P 15-22 buffer tube size?

[Lawdog-1]

I am thinking about a S&W M&P 15-22 in the future and changing the stockout and would like to know what size is the buffertube?

[Heavy Metal]

Milspec.

[ohiorifleman]

Mil-Spec Diameter

[Lawdog-1]

Thank You, Gentlemen. Good beause I can use some of my LMT SOPMOD stocks.

[breyton490]

Opps.. mis-read the post. The below info is for the M&P sport (5.56) rifle, not the 22 cal LR.

If you have a "Compliant" version (MA, NJ, CT, etc.) and have the pinned stock, you get a Commercial buffer tube. The OD is 1.17.

[Lawdog-1]

I run a B5 Coyote SOPMOD on my S/W/ M/P 15-22 FDE MOE.