SLR Sentry 6 Set Screw Adjustable Gas Block- .625

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Sentry .625" Set Screw Version - Melonite Finish

.450" Set Screw Spacing

1.3 oz

US PATENT NO. 9,410,756 

Note- If you have a barrel with no dimple or one dimple under the gas port either our .400 or .450 set screw spacing blocks will work fine. There is no difference in the blocks just the front set screw location.

- 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
- Proprietary Alloy Flat Spring with 1400deg temper
- Melonite finish 4140 detent plunger

**Tool, roll pin and mounting screws included**