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 DOUBLE STAR PICATINNY RAIL ADJUSTABLE GAS BLOCK, .750 Support

Upgrade your AR-15/M16 with Double Star's .750 Picatinny Rail Adjustable Gas Block, crafted from durable 6065 T6 aluminum for reliable performance and easy adjustments.

DOUBLE STAR PICATINNY RAIL ADJUSTABLE GAS BLOCK, .750

841348104599 100009514

Restrictions

  • Is a 'Call to order' product.

Top takeaways

  1. Double Star's Gas Block is constructed from 6065 T6 aluminum with a hard coat anodized finish.
  2. Features a stainless steel adjustment screw with a brass tipped set screw to prevent thread damage.
  3. Designed specifically for AR-15s with a .750 inside diameter and includes a Picatinny rail for accessory mounting.

Attributes

  • Inside Diameter: 
    .750
  • Material: 
    Aluminum
  • Style: 
    Adjustable
    , 
    Picatinny
  • Weapon type: 
    AR-15
  • Delivery weight: 0.018kg
  • Shipping height: 33mm
  • Shipping width: 112mm
  • Shipping length: 145mm
  • UPC: 841348104599

Item details

Made in USA
US export classification: 0A501.x
  • Specifications:
  • Inside Diameter: .750
  • Make: AR-15
  • Material: Aluminum
  • Style: Adjustable, Picatinny
84.9 84.9 1 GBP
84.9 GBP £84.90

Prices inclusive of duty & VAT.

Product no.: 100009514

Mfr. No.: DSC765

841348104599 Double Star's Picatinny Rail Adjustable Gas block is in house from 6065 T6 aluminum and finished with a black hard coat anodize. The stainless steel adjustment screw is held in place with a brass tipped stainless steel set screw. The brass tip prevents damage to the threads on the adjustment screw.
Not available
3.3/5 - 3 Customers

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
84.9 84.9 1 GBP
Description Specification Customers reviews Accessories

DOUBLE STAR PICATINNY RAIL ADJUSTABLE GAS BLOCK, .750

84.9 GBP £84.90

Prices inclusive of duty & VAT.

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

Description:

Upgrade your firearm with precision and reliability.

The Double Star Picatinny Rail Adjustable Gas Block is expertly crafted from 6065 T6 aluminum and features a durable black hard coat anodize finish. Designed for optimal performance, this gas block is an essential component for any serious shooter.

Key Features:

  • Material: 6065 T6 Aluminum
  • Inside Diameter: .750
  • Adjustment Screw: Stainless steel, secured with a brass tipped stainless steel set screw to prevent thread damage

This adjustable gas block allows for fine-tuning of your gas system, ensuring reliable cycling and performance in various shooting conditions. Whether you're upgrading your AR-15 or M16, the Double Star adjustable gas block delivers the quality and precision you need.



Restrictions

  • Is a 'Call to order' product.

Top takeaways

  1. Double Star's Gas Block is constructed from 6065 T6 aluminum with a hard coat anodized finish.
  2. Features a stainless steel adjustment screw with a brass tipped set screw to prevent thread damage.
  3. Designed specifically for AR-15s with a .750 inside diameter and includes a Picatinny rail for accessory mounting.

Attributes

  • Inside Diameter: 
    .750
  • Material: 
    Aluminum
  • Style: 
    Adjustable
    , 
    Picatinny
  • Weapon type: 
    AR-15
  • Delivery weight: 0.018kg
  • Shipping height: 33mm
  • Shipping width: 112mm
  • Shipping length: 145mm
  • UPC: 841348104599

Item details

Made in USA
US export classification: 0A501.x

Customers reviews

Customer ratings (3)

3.3 / 5
Recommended

Brownells USA some fitment may be required (not much) 22/07/2018

got this block to control / reduce the BCG movement and it most closely resembled the gas block that was removed from a Remington R25 . easily slipped on to the barrel . however installing the rollpin to hold the gas tube was a different mater , as the hole did not perfectly lineup with the hole in the gas tube . was it the tube ,was it the block? I dont know . what I know is a even smaller pin punch would not go trough to the other side of the block.



I am also concerned that I may have to modify to reduce even more gas flow ,perhaps a larger screw to block off more gas flow.

I would recommend to a friend if they were as clever as my self.

Recommended with reservations

Brownells USA Needs work to be righy 09/11/2015

I put this gas block on a palmetto 308 18inch midlenght upper. With the adjustment screw all the way in(the gas block should be closed and the rifle shouldnt cycle) the gun still cycled like it was seeing full gas volume. Dissassembly and inspection revealed the adjustment screw was actually smaller than the port in the block. So even with the screw all the way in, the gas simply bypasses the screw. I redrilled and tapped the adjustment screw hole and installed a larger (8-32) adjusting screw. Now it works like i want it to.

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