Sentry Gas Block .625 Adjustable Steel Set Screw

Name: Sentry Gas Block .625 Adjustable Steel Set Screw
Brand: SLR Rifleworks
Availability: InStock

SLR Rifleworks · Gas System

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Best price

$141.64at OpticsPlanet

In stock Sale checked Oct 1, 2026

Buy at OpticsPlanet

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Where to buy

Store	Price	Availability	Buy	Add to build
OpticsPlanet Best price	$141.64Salechecked Oct 1, 2026	In stock	Buy at OpticsPlanet
Brownells	$130.32checked Oct 1, 2026	Out of stock	Buy at Brownells

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

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Lowest in-stock price in the last 30 days: $141.64 at OpticsPlanet. Dashed line = out of stock. Tracking since Sep 27, 2026.

Show the prices as a table

Store	Latest	Lowest	Highest
Brownells	$130.32	$130.32	$130.32
OpticsPlanet	$141.64	$141.64	$141.64

Since Sep 27, 2026.

About this part

The Sentry Gas Block .625 Adjustable Steel Set Screw is an AR-15 gas system part from SLR Rifleworks. It's sold by 2 stores (1 in stock), from $130.32 to $141.64. The lowest in-stock price in the last 30 days was $141.64 at OpticsPlanet.

Fits and works with

Gas block: 0.625" diameter · Gas blocks

Specifications

Manufacturer: SLR Rifleworks
Platform: AR-15

From the manufacturer

Lock Down Your Adjustable Gas Block

The SLR Rifleworks Sentry Adjustable Set-Screw Gas Block ensures that AR-15 shooters have the ability to fine-tune their gas system for optimum operation.

The SLR Rifleworks Sentry Adjustable Set-Screw Gas Block is constructed with a simple metering system that doesn't use springs or balls and is adjustable through the use of an included tool.