Sentry Gas Block .625 Adjustable Steel Clamp On

Name: Sentry Gas Block .625 Adjustable Steel Clamp On
Brand: SLR Rifleworks
Availability: InStock

SLR Rifleworks · Gas System

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Sentry Gas Block .625 Adjustable Steel Clamp On

Best price

$134.56at OpticsPlanet

In stock Sale Lowest in 30 dayschecked Nov 14, 2026

Buy at OpticsPlanet

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Fits and works with

Gas block: 0.625" diameter · Gas blocks

Specifications

Manufacturer: SLR Rifleworks

Compatibility

Gas block journal: .625

Materials and features

Style: Adjustable
Attachment: Clamp-on
Platform: AR-15

Where to buy

Store	Price	Availability	Buy
OpticsPlanet Best price	$134.56Salechecked Nov 14, 2026	In stock	Buy at OpticsPlanet
AR15Discounts 5% off	$141.64checked Nov 14, 2026	Check store	Buy at AR15Discounts
Dirty Bird	$141.64checked Nov 14, 2026	Check store	Buy at Dirty Bird
Brownells 17.76% off · ends Nov 15 · exclusions apply	$130.32checked Nov 14, 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: $134.56 at OpticsPlanet. Dashed line = out of stock. Tracking since Sep 27, 2026.

Show the prices as a table

Store	Latest	Lowest	Highest
AR15Discounts	$141.64	$141.64	$141.64
Brownells	$130.32	$130.32	$130.32
Dirty Bird	$141.64	$141.64	$141.64
OpticsPlanet	$134.56	$134.56	$134.56

Since Sep 27, 2026.

About this part

The Sentry Gas Block .625 Adjustable Steel Clamp On is an AR-15 gas system part from SLR Rifleworks. It's sold by 4 stores (1 in stock), from $130.32 to $141.64. The lowest in-stock price in the last 30 days was $134.56 at OpticsPlanet.

From the manufacturer

Feed Your AR-15 the Gas It Needs

The SLR Rifleworks Sentry Adjustable Clamp On Gas Block gives AR owners total control over their rifle's gas systems, giving them the chance to fine-tune the gun with different ammo or with an attached suppressor.

The SLR Rifleworks Sentry Adjustable Clamp On Gas Block doesn't operate with any small screws or balls like other gas blocks, removing the chance these parts could fail or get lost.

Comes in .625, .750, .875 and .936 diameters
Constructed from 4140 billet steel
Features QPQ Melonite finish

The SLR Rifleworks Sentry Adjustable Clamp On Gas Block is adjustable with an included tool and features a clamp-on attachment design that is guaranteed to provide a solid gas seal.