Posted: 8/21/2017 1:44:55 AM EDT
I friend brought an LWRC M6(a2 ?) to me with with an adjustable gas block with various markings. Does anyone (beside LWRC) have an idea what the markings/settings are ? I will post pics shortly.
my A3 upper has a 4 position dial....
Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!
You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.