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Questions & Answers
Will this fit on a bcm carbine barrel or do I need the block with .450 spacing? Expert Answer

This has a .400 spacing.

by Todd, Gear Expert, November 9, 2021
Will this fit under a low profile free floating rail system? Expert Answer

Needs Minimum 1.4 inch Inner Diameter Handguard if going underneath.

by Todd, Gear Expert, November 9, 2021
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Product Info for SLR Sentry 9 .936 Adjustable Gas Block w/.400 in. Set Screw Spacing

Features/Specifications:image

.400 inch Set Screw Spacing.

15-position adjustability from 0 - 0.125 inch 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 Nexturn Swiss precision metering screw.

Proprietary Alloy Flat Spring with 1400deg temper.

Melonite finish 4140 detent plunger.

USES STANDARD GAS TUBE.

NOTE -Needs Minimum 1.4 inch Inner Diameter Handguard if going underneath.

Included Accessories:

Tool, roll pin and mounting screws

Specifications for SLR Sentry 9 .936 Adjustable Gas Block w/.400 in. Set Screw Spacing:

Manufacturer: SLR
Coating: Melonite QPQ Finish
Gas Block Journal Size-Diameter: .936 in
Gun Make: AR Platform
Additional Features: w/.400 in. Set Screw Spacing
Gas System Type: Direct Impingement

Features of SLR Sentry 9 .936 Adjustable Gas Block w/.400 in. Set Screw Spacing:

  • .400 inch Set Screw Spacing.
  • 15-position adjustability from 0 - 0.125 inch 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 Nexturn Swiss precision metering screw.
  • Proprietary Alloy Flat Spring with 1400deg temper.
  • Melonite finish 4140 detent plunger.
  • USES STANDARD GAS TUBE.
  • NOTE -Needs Minimum 1.4 inch Inner Diameter Handguard if going underneath.
  • Included Accessories:
  • Tool
  • roll pin and mounting screws

Package Contents:

  • SLR Sentry 9 .936 Adjustable Gas Block w/.400 in. Set Screw Spacing

SLR Sentry 9 .936 Adjustable Gas Block w/.400 in. Set Screw Spacing Orderable Models

List of Orderable Models

SLR Sentry 9 .936 Adjustable Gas Block w/.400 in. Set Screw Spacing, Black, SA9-SM , MPN: SA9-SM , UPC: 0810646034792 , Code: 39E-RGB-SLRSEN9W400-SA9-SM
SLR Sentry 9 .936 Adjustable Gas Block w/.400 in. Set Screw Spacing, Titanium, SA9-TI-S , MPN: SA9-TI-S , Code: 39E-RGB-SLRSEN9W400-SA9-TI-S
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