I am looking for an AR gas block that can be switched off in a fashion similar to the M1A gas block.
This allows the use of loads both lighter and heavier than the gas system can handle, at the cost of having to cycle the action by hand like a straight-pull bolt action rifle.
Can anybody steer me onto an aftermarket AR gas block which incorporates this feature?
Note that an adjustable gas system is not being looked for, what is needed is a gas system cutoff switch like the M1A has.
Edited by charlesb (03/05/16 07:24 AM)
Kind regards, charlesb