My Account (Sign in)
Your basket is empty.
0
Basket
contact us by phone Help and contact
Free standard delivery over £199
100-day return policy
My Account (Sign in)
Wish list
Your basket is empty. (0)
Basket
Newsletter Newsletter
Sale

Over 300,000 customers - we say thank you!

4.93/5 "Very good" (1400+ reviews)

40,000+ products for hunting and shooting sports

Rifle Parts Gas System Parts Gas Blocks SLR RIFLEWORKS SENTRY GAS BLOCK .750 ADJUSTABLE STEEL SET SCREW Support

Fine-tune your AR-15 gas system with the SLR Rifleworks Sentry Adjustable Gas Block, featuring durable 4140 steel, QPQ Melonite finish, and secure set screws.

SLR RIFLEWORKS SENTRY GAS BLOCK .750 ADJUSTABLE STEEL SET SCREW

100025368

Filters:

Variations
Filters:
Variations:

Variations:

Fine-tune your AR-15 gas system with the SLR Rifleworks Sentry Adjustable Gas Block, featuring durable 4140 steel, QPQ Melonite finish, and secure set screws.
AR-15 SENTRY ADJUSTABLE GAS BLOCKS STEEL SET SCREW - SENTRY GAS BLOCK .750 ADJUSTABLE STEEL SET SCREW
209.9 GBP 0 £209.90 *
Not available
Inside Diameter: .750 Make: AR-15 Material: Steel Style: Adjustable Product no.: 100025368
Not available
209.9 GBP 0 £209.90 *
The SLR Rifleworks Sentry Adjustable Gas Block offers precise gas tuning, durable 4140 steel construction, and a secure fit with its dual set screws for optimal performance.
AR-15 SENTRY ADJUSTABLE GAS BLOCKS STEEL SET SCREW - SENTRY GAS BLOCK .625 ADJUSTABLE STEEL SET SCREW
149.9 GBP 0 £149.90 *
Not available
Inside Diameter: .625 Make: AR-15 Material: Steel Style: Adjustable Product no.: 100025367
Not available
149.9 GBP 0 £149.90 *
Fine-tune your AR-15 gas system with the SLR Rifleworks Sentry Adjustable Gas Block, made from durable 4140 steel and featuring a QPQ Melonite finish.
AR-15 SENTRY ADJUSTABLE GAS BLOCKS STEEL SET SCREW - SENTRY GAS BLOCK .875 ADJUSTABLE STEEL SET SCREW
199.9 GBP 0 £199.90 *
Not available
Inside Diameter: .875 Make: AR-15 Material: Steel Style: Adjustable Product no.: 100025369
Not available
199.9 GBP 0 £199.90 *
Fine-tune your AR-15's gas system with the SLR Rifleworks Sentry Adjustable Gas Block, made from durable 4140 steel with a QPQ Melonite finish for optimal performance.
AR-15 SENTRY ADJUSTABLE GAS BLOCKS STEEL SET SCREW - SENTRY GAS BLOCK .936 ADJUSTABLE STEEL SET SCREW
149.9 GBP 0 £149.90 *
Not available
Inside Diameter: .936 Make: AR-15 Material: Steel Style: Adjustable Product no.: 100025370
Not available
149.9 GBP 0 £149.90 *
149.9 209.9 4 GBP
209.9 GBP £209.90

Prices inclusive of duty & VAT.

Product no.: 100025368

Mfr. No.: SA7-SM

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. Machined from 4140 steel Features QPQ Melonite finish Comes in .625, .750, .875 and .936 diameter sizes The SLR Rifleworks Sentry Adjustable Set-Screw Gas Block is equipped with two set screws that lock the block into the barrel for an ideal gas seal.
Not available
Be the first to rate this product

Not available.

100-Day Return Policy
No charges until we ship
No charge:
Your credit card will not be charged when you place your order.

No commitments:
You are under no obligation until the goods are shipped. You can cancel your order at any time before shipping - free of charge.

Not until shipping:
Your credit card will only be charged once we ship your order. Not before.
Wish List Ask question
order by phone
149.9 209.9 4 GBP
Description Specification Customers reviews Accessories

SLR RIFLEWORKS SENTRY GAS BLOCK .750 ADJUSTABLE STEEL SET SCREW

209.9 GBP £209.90

Prices inclusive of duty & VAT.

Is a 'Call to order' product.
Requires order by phone

Description:

Enhance Your AR-15's Performance with Precision

The SLR Rifleworks Sentry Adjustable Set-Screw Gas Block is designed to provide AR-15 shooters with the ultimate flexibility in tuning their gas system for optimal performance.

Key Features:

  • Fine-Tuning Capability: Allows for precise adjustments to your gas system, ensuring reliable operation.
  • Simple Metering System: Utilises a straightforward design without springs or balls, making adjustments easy.
  • Durable Construction: Machined from high-quality 4140 steel for enhanced durability.
  • QPQ Melonite Finish: Provides excellent corrosion resistance and longevity.
  • Available Sizes: Comes in .625, .750, .875, and .936 diameter options to fit various barrel sizes.
  • Secure Fit: Equipped with two set screws that lock the block into the barrel for an ideal gas seal.

With the SLR Rifleworks Sentry Adjustable Set-Screw Gas Block, you can confidently fine-tune your AR-15 for any shooting scenario.



Restrictions

  • Is a 'Call to order' product.

Top takeaways

  1. The SLR Rifleworks Sentry Adjustable Set-Screw Gas Block allows for precise tuning of the AR-15's gas system.
  2. It is made from 4140 steel with a QPQ Melonite finish and is available in several diameter sizes including .750.
  3. Installation is secure with two set screws that ensure a proper gas seal on the barrel.

Attributes

  • Inside Diameter: 
    .750
  • Material: 
    Steel
  • Style: 
    Adjustable
  • Weapon type: 
    AR-15
  • Delivery weight: 0.05kg
  • Shipping height: 25mm
  • Shipping width: 76mm
  • Shipping length: 140mm

Item details

Made in USA
US export classification: 0A501.x

Customers reviews

Customer ratings (0)

0 / 5

Variations:

Fine-tune your AR-15 gas system with the SLR Rifleworks Sentry Adjustable Gas Block, featuring durable 4140 steel, QPQ Melonite finish, and secure set screws.
AR-15 SENTRY ADJUSTABLE GAS BLOCKS STEEL SET SCREW - SENTRY GAS BLOCK .750 ADJUSTABLE STEEL SET SCREW
209.9 GBP 0 £209.90 *
Not available
Inside Diameter: .750 Make: AR-15 Material: Steel Style: Adjustable Product no.: 100025368
Not available
209.9 GBP 0 £209.90 *
The SLR Rifleworks Sentry Adjustable Gas Block offers precise gas tuning, durable 4140 steel construction, and a secure fit with its dual set screws for optimal performance.
AR-15 SENTRY ADJUSTABLE GAS BLOCKS STEEL SET SCREW - SENTRY GAS BLOCK .625 ADJUSTABLE STEEL SET SCREW
149.9 GBP 0 £149.90 *
Not available
Inside Diameter: .625 Make: AR-15 Material: Steel Style: Adjustable Product no.: 100025367
Not available
149.9 GBP 0 £149.90 *
Fine-tune your AR-15 gas system with the SLR Rifleworks Sentry Adjustable Gas Block, made from durable 4140 steel and featuring a QPQ Melonite finish.
AR-15 SENTRY ADJUSTABLE GAS BLOCKS STEEL SET SCREW - SENTRY GAS BLOCK .875 ADJUSTABLE STEEL SET SCREW
199.9 GBP 0 £199.90 *
Not available
Inside Diameter: .875 Make: AR-15 Material: Steel Style: Adjustable Product no.: 100025369
Not available
199.9 GBP 0 £199.90 *
Fine-tune your AR-15's gas system with the SLR Rifleworks Sentry Adjustable Gas Block, made from durable 4140 steel with a QPQ Melonite finish for optimal performance.
AR-15 SENTRY ADJUSTABLE GAS BLOCKS STEEL SET SCREW - SENTRY GAS BLOCK .936 ADJUSTABLE STEEL SET SCREW
149.9 GBP 0 £149.90 *
Not available
Inside Diameter: .936 Make: AR-15 Material: Steel Style: Adjustable Product no.: 100025370
Not available
149.9 GBP 0 £149.90 *

Oops! Something went wrong.

We encountered an error while loading this content. Please refresh the page to continue. If the issue persists, contact our customer support.

Site Navigation
Product Categories
Ordering
Customer Service

Welcome!

to Brownells UK, your destination for anything gun related. With our roots in a genuine passion for firearms, we bring you an unmatched selection of Gun Parts, Firearm Accessories, Gunsmithing Tools, Scopes & Red Dot Sights and Expert Knowledge.

Whether you're looking to maintain, repair, or upgrade, we've got what you need!

For Shooters, By Shooters
We share your enthusiasm and know exactly what you're looking for because we're part of the community.

Massive Selection
From the essentials to the unique, find everything under one roof.

Our blend of tradition and innovation
Shop with the convenience of modern technology, backed by a legacy of experience.

Browse our collection and discover why we're the trusted name in shooting sports & hunting.

Brownells Norge - Komplett utvalg av ladeutstyr, våpendeler, kuler, hylser, kikkerter, optikk og luftvåpen Brownells Österreich - Einer der größten Lieferanten für Waffenteile, Büchsenmacherzubehör & Schießsportzubehör Brownells Switzerland - Einer der größten Lieferanten für Waffenteile, Büchsenmacherzubehör & Schießsportzubehör Brownells Deutschland - Einer der größten Lieferanten für Waffenteile, Büchsenmacherzubehör & Schießsportzubehör Brownells France - Le plus grand fournisseur d'Accessoires pour le tir, Pièces détachées & Outils d'Armurier Brownells Iberica - El mayor proveedor de accesorios para el Tiro, Piezas y herramientas del armero. Brownells Sverige - Världens största leverantör av Vapendelar, Vapensmide Verktyg & Skyttetillbehör Brownells Suomi Brownells Italia - Il negozio del più grande rivenditore di componenti e accessori per armi da tiro, difesa e caccia Brownells Polska - Największy na świecie dostawca części broni, narzędzi rusznikarskich & akcesoriów strzeleckich Brownells Česko - Největší světový dodavatel součástí zbraní, střeleckého příslušenství a zbrojního nářadí
*
Prices inclusive of duty & VAT.

© 2025 Brownells UK
Part of the Brownells Europe Group

Logo Brownells
Classical viewClassical view Mobile viewMobile view
Back to top