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 Muzzle Devices Flash Hiders BREEK ARMS 3FO-S FLASH HIDER 9MM 1/2"X36 THREAD Support

The 3FO-S Flash Hider offers superior flash suppression, internal threads for enhanced performance, and a sleek design, perfect for Pistol Caliber Carbines.
-10 %

BREEK ARMS 3FO-S FLASH HIDER 9MM 1/2"X36 THREAD

812296030650 430107013

Filters:

Variations
Filters:
Variations:

Variations:

-10 %
The 3FO-S Flash Hider offers superior flash suppression, internal threads for enhanced performance, and a sleek design, perfect for Pistol Caliber Carbines.
3FO-S FLASH HIDER - 3FO-S FLASH HIDER 9MM 1/2"X36 THREAD
35.9 GBP 19 £35.90 * £39.90
In stock
Caliber: 9 mm (.355-.356) Finish: Black Make: AR-15 Material: Steel Threads: 1/2-28 Product no.: 430107013
In stock
35.9 GBP 19 £35.90 * £39.90
-14 %
The BREEK ARMS 3FO-S Flash Hider offers exceptional strength, reduced muzzle flash, and a sleek profile for optimal visibility and tactical advantage.
3FO-S FLASH HIDER - 3FO-S FLASH HIDER 223/5.56 CALIBER 1/2"X28 THREAD
37.9 GBP 0 £37.90 * £43.90
Not available
Caliber: 22 Caliber (.223-.224) Finish: Black Make: AR-15 Material: Steel Threads: 1/2-28 Product no.: 430107010
Not available
37.9 GBP 0 £37.90 * £43.90
-10 %
The 3FO-S Flash Hider reduces muzzle flash and enhances visibility with its internal threads and sleek profile, perfect for tactical situations.
3FO-S FLASH HIDER - 3FO-S FLASH HIDER 30 CALIBER 5/8"X24 THREAD
37.9 GBP 26 £37.90 * £41.90
In stock
Caliber: 30 Caliber (.308) Finish: Black Make: AR .308 Material: Steel Threads: 5/8-24 Product no.: 430107011
In stock
37.9 GBP 26 £37.90 * £41.90
-10 %
The BREEK ARMS 3FO-S Flash Hider offers superior flash suppression, a sleek short profile, and internal threads for enhanced performance in tactical situations.
3FO-S FLASH HIDER - 3FO-S FLASH HIDER 9MM 1/2"X28 THREAD
37.9 GBP 15 £37.90 * £41.90
In stock
Caliber: 9 mm (.355-.356) Finish: Black Make: AR-15 Material: Steel Threads: 1/2-28 Product no.: 430107012
In stock
37.9 GBP 15 £37.90 * £41.90
-10 %
The 3FO-S Flash Hider offers superior flash suppression, a sleek design, and internal threads for enhanced performance, ensuring optimal visibility in low-light conditions.
3FO-S FLASH HIDER - 3FO-S FLASH HIDER 9MM 5/8"X24 THREAD
35.9 GBP 38 £35.90 * £39.90
In stock
Caliber: 9 mm (.355-.356) Finish: Black Make: AR-15 Material: Steel Threads: 5/8-24 Product no.: 430107014
In stock
35.9 GBP 38 £35.90 * £39.90
35.9 37.9 5 GBP
-10 %
MSRP £39.90
35.9 GBP £35.90

Prices inclusive of duty & VAT.

Product no.: 430107013

Mfr. No.: BRK4037

812296030650 The 3FO-S Flash Hider is machined out of heat treated 4140 then nitrided offering exceptional strength and reliability. The primary function of the 3FO-S diminishes muzzle flash by dispersing and redirecting the escaping gases generated by the fired round, thus minimizing the signature flash produced at the muzzle maintaining your tactical advantage in critical situations as well as keeping your rifle footprint as small as possible. The 3FO-S has internal threads, a significant design advantage offering even more flash suppression over standard flash hiders. The reduced flash not only helps maintain a clear sight picture but also reduces the chances of the shooter being temporarily blinded in low-light conditions, ensuring optimal visibility and target acquisition. It features a sleek, short profile that integrates seamlessly with your system, maintaining a clean and streamlined appearance. FEATURES: Short profile works great for Pistol Caliber Carbines Internal Threads Disrupt Gas Expansion Resulting in Less Flash Design: 3FO-S: 3 Prong Outside Threaded Short Flash Hider Outside Thread: 13/16 x 16 TPI Material: 4140 Steel Nitrided Cone Shape Lockup Provides a Tighter & More Concentric Fit Comes with 1 Crush Washer Overall length: 1.58 Inches Weight: 2.2 oz (223) 1.9 oz (9mm) Made in America Caliber & Thread Options: Cal: 223/556; Thread: 1/2x28 Cal: .30; Thread: 5/8x24 Cal: 9mm, Thread: 5/8x24 Cal: 9mm; Thread: 1/2x28 Cal: 9mm; Thread: 1/2x36
In stock More than 10 pieces in USA warehouse
Be the first to rate this product

Delivery time approx. 7-14 days.

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
35.9 37.9 5 GBP
Description Specification Customers reviews Accessories

BREEK ARMS 3FO-S FLASH HIDER 9MM 1/2"X36 THREAD

-10 %
MSRP £39.90
35.9 GBP £35.90

Prices inclusive of duty & VAT.

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

Description:

Enhance your tactical advantage with the 3FO-S Flash Hider from BREEK ARMS.

The 3FO-S Flash Hider is expertly machined from heat-treated 4140 steel and nitrided for exceptional strength and reliability. Its primary function is to diminish muzzle flash by effectively dispersing and redirecting the escaping gases generated by the fired round. This design minimizes the signature flash produced at the muzzle, helping you maintain a tactical edge in critical situations while keeping your rifle's footprint as small as possible.

Key Features:

  • Short profile ideal for Pistol Caliber Carbines
  • Internal Threads disrupt gas expansion, resulting in less flash
  • Design: 3FO-S - 3 Prong Outside Threaded Short Flash Hider
  • Outside Thread: 13/16 x 16 TPI
  • Material: 4140 Steel Nitrided
  • Cone Shape Lockup provides a tighter & more concentric fit
  • Includes 1 Crush Washer
  • Overall length: 1.58 Inches
  • Weight: 2.2 oz (223), 1.9 oz (9mm)

Caliber & Thread Options:

  • Cal: 223/556; Thread: 1/2x28
  • Cal: .30; Thread: 5/8x24
  • Cal: 9mm; Thread: 5/8x24
  • Cal: 9mm; Thread: 1/2x28
  • Cal: 9mm; Thread: 1/2x36

The reduced flash not only helps maintain a clear sight picture but also reduces the chances of the shooter being temporarily blinded in low-light conditions, ensuring optimal visibility and target acquisition. With its sleek, short profile, the 3FO-S integrates seamlessly with your system, maintaining a clean and streamlined appearance.



Restrictions

  • Is a 'Call to order' product.

Top takeaways

  1. The 3FO-S Flash Hider is made from heat-treated 4140 steel with a nitride finish, ensuring strength and durability.
  2. It is designed to significantly reduce muzzle flash with internal threads and a cone-shaped lockup for a tighter fit.
  3. Available in multiple caliber and thread options, it is made in America and is compatible with AR-15s, specifically for 9mm with 1/2"x36 thread.

Attributes

  • Caliber: 
    9 mm (.355-.356)
  • Finish: 
    Black
  • Material: 
    Steel
  • Threads: 
    1/2-28
  • Weapon type: 
    AR-15
  • Delivery weight: 0.059kg
  • Shipping height: 32mm
  • Shipping width: 89mm
  • Shipping length: 140mm
  • UPC: 812296030650

Item details

Made in USA

Customers reviews

Customer ratings (0)

0 / 5

Variations:

-10 %
The 3FO-S Flash Hider offers superior flash suppression, internal threads for enhanced performance, and a sleek design, perfect for Pistol Caliber Carbines.
3FO-S FLASH HIDER - 3FO-S FLASH HIDER 9MM 1/2"X36 THREAD
35.9 GBP 19 £35.90 * £39.90
In stock
Caliber: 9 mm (.355-.356) Finish: Black Make: AR-15 Material: Steel Threads: 1/2-28 Product no.: 430107013
In stock
35.9 GBP 19 £35.90 * £39.90
-14 %
The BREEK ARMS 3FO-S Flash Hider offers exceptional strength, reduced muzzle flash, and a sleek profile for optimal visibility and tactical advantage.
3FO-S FLASH HIDER - 3FO-S FLASH HIDER 223/5.56 CALIBER 1/2"X28 THREAD
37.9 GBP 0 £37.90 * £43.90
Not available
Caliber: 22 Caliber (.223-.224) Finish: Black Make: AR-15 Material: Steel Threads: 1/2-28 Product no.: 430107010
Not available
37.9 GBP 0 £37.90 * £43.90
-10 %
The 3FO-S Flash Hider reduces muzzle flash and enhances visibility with its internal threads and sleek profile, perfect for tactical situations.
3FO-S FLASH HIDER - 3FO-S FLASH HIDER 30 CALIBER 5/8"X24 THREAD
37.9 GBP 26 £37.90 * £41.90
In stock
Caliber: 30 Caliber (.308) Finish: Black Make: AR .308 Material: Steel Threads: 5/8-24 Product no.: 430107011
In stock
37.9 GBP 26 £37.90 * £41.90
-10 %
The BREEK ARMS 3FO-S Flash Hider offers superior flash suppression, a sleek short profile, and internal threads for enhanced performance in tactical situations.
3FO-S FLASH HIDER - 3FO-S FLASH HIDER 9MM 1/2"X28 THREAD
37.9 GBP 15 £37.90 * £41.90
In stock
Caliber: 9 mm (.355-.356) Finish: Black Make: AR-15 Material: Steel Threads: 1/2-28 Product no.: 430107012
In stock
37.9 GBP 15 £37.90 * £41.90
-10 %
The 3FO-S Flash Hider offers superior flash suppression, a sleek design, and internal threads for enhanced performance, ensuring optimal visibility in low-light conditions.
3FO-S FLASH HIDER - 3FO-S FLASH HIDER 9MM 5/8"X24 THREAD
35.9 GBP 38 £35.90 * £39.90
In stock
Caliber: 9 mm (.355-.356) Finish: Black Make: AR-15 Material: Steel Threads: 5/8-24 Product no.: 430107014
In stock
35.9 GBP 38 £35.90 * £39.90

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