Thread: AR15 adjustable gas blocks?

I think $100 is too low , for a well designed & made ( steel ) , adjustable gas block , I would also see what the current HK ARs use , in reguards to adjustable gas blocks , its my impression that the 7.62x51mm HK417 is one of the few rifles to have a adjustable gas block designed with using the rifle , suppressed OR un-suppressed .
Also maybe look at the OLD oringinal AR10 , one model had a setting for cutting the gas OFF , I think for rifle grenades ?
I would NOT worry about too much about out the front adjustment , as you can always have a little slot cut in the hand guard , which is what the HK has I think ,