06-23-2014, 01:55 PM
Klem,
I recently put one on my 16" upper. Here is my post with some info
http://www.65grendel.com/forum/showthrea...ck-success
Best,
PA
I recently put one on my 16" upper. Here is my post with some info
http://www.65grendel.com/forum/showthrea...ck-success
Best,
PA

