http://www.apexhandguard.com/2360-a...-7-oz-with-hardware-apex-gatorgrip-handguard/
Compatible with: S&W M&P10, DPMS, & Knights Armament SR-25
August 2009 changed the height of the top rail on the LR308 upper receiver. To properly match your receiver height, measure the distance from the barrel's centerline to the top of the receiver rail.
PRE August 2009 model is 1.313"
POST August 2009 model is 1.253"
Do you have a Windham AR-10? The above stuff only applies to a DPMS as far as I know. If your's uses a DPMS pattern barrel nut then the KA forend should work.
Thats all i know:
Our .308 has AR10 rail height and DPMS spec barrel nuts. The bbl nut thread is 1 7/16” – 16UN. The thickness behind the charging handle is about .240”


















































