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Breek Arms 3FO-S Short Outside Flash Hider - 1/2x36 (9mm)

Breek Arms 3FO-S Short Outside Flash Hider - 1/2x36 (9mm)

Breek Arms · Muzzle Devices

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Best price

$27.99at Dirty Bird

checked Nov 10, 2026

Buy at Dirty Bird

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Where to buy

StorePriceAvailabilityBuyAdd to build
Dirty Bird Best price $27.99checked Nov 10, 2026 Check store Buy at Dirty Bird
AR15Discounts $34.99checked Nov 10, 2026 Check store Buy at AR15Discounts

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

Dashed line = out of stock. Tracking since Oct 28, 2026.

Show the prices as a table
StoreLatestLowestHighest
AR15Discounts$34.99$34.99$34.99
Dirty Bird$27.99$27.99$27.99

Since Oct 28, 2026.

About this part

The Breek Arms 3FO-S Short Outside Flash Hider - 1/2x36 (9mm) is a flash hider from Breek Arms. It's sold by 2 stores, from $27.99 to $34.99.

Fits and works with

Caliber
9mm · Shop matching ammo
Muzzle thread
1/2x36 · Muzzle devices

Specifications

Manufacturer
Breek Arms
Type
Flash Hider
Caliber
9mm
Thread pattern
½ x 36

From the manufacturer

Breek Arms' lineup of Outside Threaded Muzzle Devices is an affordable upgrade that gives you the option to run a flash hider or muzzle brake while utilizing our Breek Arms Castle Blast Shield as a forward blast diverter or concussion device. Simply slide the blast shield over the outside of the muzzle device and turn the blast shield on. This gives the shooter a more pleasant experience when firing especially for shorter platforms that tend to have an overbearing concussion. Features: 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 Prehard 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) Designed & Manufactured in America

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$27.99 at Dirty Bird
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