Reduced flow spindle valve for the M14, limiting gas flow with heavier loads, or when firing suppressed, so the op-rod does not get over-stressed.
These are USGI valves that have been cross-drilled with carbide drills, then spotted with an end mill to assure there are no alignment issues. With these, the two valve positions will be Full Flow / Reduced flow, versus On/Off.
Currently only the 0.052″ size is in stock. Other sizes can be made upon request.