S&W M&P15X Rails

AR/M4 AR Technical Discussion
1

can anyone tell me what brand of Rails S&W uses on the M&P15X and where I can get a set?

2

They are (or were) Troy Industries Drop in rail.

http://www.gandrtactical.com/cgi-bin/commerce.cgi?preadd=action&key=MRF-DIH

3

thanks, I appriciate the info.