Sentry .875"  Set Screw Version - Melonite Finish

.400" Set Screw Spacing

1.8 oz

US PATENT NO. 9,410,756

- 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

Note- Needs 1.35" Minimum ID HG (SLR Ion/ Helix HG's OK)