Equipment Exchange

Selling a custom gas regulator for both the Zastava M90 and M77 rifles. The stock regulator has 3 positions, and is still overgassed, especially suppressed. The port sizes chosen are the best combination for both rifles, allows fine tuning for reduced gas, but still allows the stock positions everyone uses.

I created a 5 position gas regulator, made from 17-4 stainless. The positions are laser engraved, and the port sizes are as follows:

1: 0.047" (M90 suppressed)
2: 0.050" (M90 suppressed, M77 Suppressed)
3: 0.055" (M77 Suppressed, M90 stock position 1)
4: 0.063" (M90 stock position 2, M77 stock position 1)
5: 0.070" (M90 stock position 3, M77 stock position 2)

The spring tab will cover the number you select. Allows you to run reduced gas without permanently altering your gun. Tested with a YHM Turbo T3 on the M90, and a YHM Resonator K on the M77. I also can confirm that it fits when using an SLR gas tube.

***Does not fit the Riley RAK308, you will need the M76 Gas Regulator for that gun***

$120 shipped


I accept check, money orders, PayPal, zelle, cashapp. No trades.