Adjustable Gas Spindle Valve for M14 / M1A – ShootingSight Type – Gas System Tuning

Adjustable gas spindle valve for M14 / M1A rifles.

This part is inspired by the well-known ShootingSight / Gaard Engineering system, which is difficult to obtain in Europe due to export restrictions.

To solve this, I modified original Springfield Armory spindle valves to integrate an adjustable gas regulation screw with locking nut.

The system allows fine tuning of the gas flow in order to optimize the rifle's cycling.

Benefits:

• precise gas regulation
• reduced stress on the operating rod
• smoother cycling
• useful when shooting heavy loads or with suppressor
• no permanent modification of the rifle

Adjustment principle:
Start with the screw fully open (maximum gas flow).
Fire single rounds and progressively tighten the screw until the bolt locks back reliably on an empty magazine.
Once the correct setting is found, secure the adjustment with the locking nut.

Features:

• based on original Springfield Armory spindle valve
• stainless steel adjustment screw
• locking nut for stable setting
• simple installation (no permanent modification)

For reference, see the original concept here:
https://shootingsight.com/?product=adjustable-m14-spindle-valve-by-gaard-engineering

If you have any questions, feel free to ask.

"Only the Adjustable Gas Spindle Valve is for sale. The gas cylinder shown in the picture is for illustration purposes only and is not included!"