Kak Industry 410-1702-015 A1 Flash Hider 1/2X28
The Kak Industry A1 flash hider 1/2x28 is a classic muzzle device built on a time-tested design that handles recoil mitigation while keeping a clean, mil-spec profile on your rifle. If you're running an AR-15 or other platform with a 1/2x28 threaded barrel, this retro-style flash hider delivers straightforward performance without the bulk or complexity of modern alternatives. Kak Industry manufactures this piece in the USA, focusing on quality components at honest pricing — no marketing fluff, just solid American-made steel.
The A1 design has proven itself across decades of military and civilian use. This version comes heat-treated and phosphate-coated, giving it durability and a traditional finish that won't stand out on a period-correct build or a working rifle. At 1.750 inches overall length, it's compact enough to keep your sight radius intact while still managing flash and gases effectively. Whether you're assembling a classic AR, a retro-inspired build, or just prefer the minimalist A1 profile over newer designs, this is a no-fuss choice.
Note that the crush washer is sold separately, so plan accordingly when ordering — you'll want one to ensure a proper headspace fit on your barrel. If you value American manufacturing, straightforward design, and an honest price point, Kak Industry's A1 flash hider is worth a close look.
Key Features
- Retro A1 profile — proven design, minimal flash
- Heat-treated and phosphate-coated steel for durability
- USA manufactured by Kak Industry
- 1.750" overall length — compact and sight-radius-friendly
- 1/2x28 thread pitch — fits most AR-15 and compatible platforms
Specifications
| Thread Pitch | 1/2x28 |
| Overall Length | 1.750" |
| Material | Heat-treated steel |
| Finish | Phosphate coated |
| Design | A1 (retro profile) |
| Manufacturer | Kak Industry (USA) |
Frequently Asked Questions
What barrels does the 1/2x28 A1 flash hider fit?
This flash hider fits any AR-15 or compatible rifle with a 1/2x28 threaded muzzle. That includes most standard modern and retro-profile barrels, but always verify your barrel's thread pitch before ordering.
Do I need a crush washer?
Yes, a crush washer is required for proper installation and headspace alignment. It is not included with this flash hider, so you'll need to purchase one separately.
Is this suitable for a retro or clone build?
Absolutely. The A1 design is period-correct for classic AR builds and clone rifles. The phosphate finish and retro profile make it an authentic choice for anyone building to original specifications.

