– 15-position adjustability from 0 – 0.125″ port opening
– Metering screw and screw bore design allows repeatability and reliability only SLR has been able to deliver
– Single tool click to adjust gas metering
– Melonite finish 4140 Precision machined gas block
– Melonite finish 4140 Nexturn Swiss precision metering screw
– Stamped Alloy Flat Spring with 1400deg temper
– Melonite finish 4140 detent plunger
– USES STANDARD GAS TUBE

– Tool, roll pin and mounting screws included

Works with all SLR Handguards and most others

Sentry .750″ Set Screw Version – Melonite QPQ Finish

.400″ Set Screw Spacing

1.3 oz