Nox Deadair Sandman Muzzle Device Keymount .300 5/8 X 24
$109.00 at Brownells · 4 stores
In stock
Muzzle Brake Keymo Compatible For .223 Dead Air Suppressor - 1215km Suppressor Mount For Dead Air .223 Suppressor 1/2"x28
Forward Controls Design · Muzzle Devices
No ratings yetBest price
$104.50at Brownells
In stock Lowest in 30 dayschecked Nov 14, 2026
Fits and works with
- Caliber
- 5.56 / .223 · Shop matching ammo
- Muzzle thread
- 1/2x28 · Muzzle devices
Specifications
- Manufacturer
- Forward Controls Design
Compatibility
- Muzzle thread
- ½ x 28
- Caliber
- .223 / 5.56
Dimensions and weight
- Length
- 2.4"
- Weight
- 3.81 oz
Materials and features
- Type
- Suppressor Mount
- Material
- Steel
- Color
- Black
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells Best price 17.76% off · ends Nov 15 · exclusions apply | $104.50checked Nov 14, 2026 | In stock | Buy at Brownells | |
| Ammunition Depot | $104.50checked Nov 14, 2026 | In stock | Buy at Ammunition Depot | |
| Battlehawk Armory | $83.70Salechecked Nov 14, 2026 | Check store | Buy at Battlehawk Armory | |
| AR15Discounts 5% off | $104.50checked Nov 14, 2026 | Check store | Buy at AR15Discounts | |
| Dirty Bird | $104.50checked Nov 14, 2026 | Check store | Buy at Dirty Bird | |
| Palmetto State Armory | $104.99checked Nov 14, 2026 | Check store | Buy at Palmetto State Armory | |
| OpticsPlanet | $104.50Salechecked Nov 14, 2026 | Out of stock | Buy at OpticsPlanet |
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
Lowest in-stock price in the last 30 days: $104.50 at Ammunition Depot. Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| AR15Discounts | $104.50 | $104.50 | $104.50 |
| Ammunition Depot | $104.50 | $104.50 | $104.50 |
| Battlehawk Armory | $83.70 | $83.70 | $83.70 |
| Brownells | $104.50 | $104.50 | $104.50 |
| Dirty Bird | $104.50 | $104.50 | $104.50 |
| OpticsPlanet | $104.50 | $104.50 | $104.50 |
| Palmetto State Armory | $104.99 | $104.99 | $104.99 |
Since Sep 27, 2026.
About this part
The Muzzle Brake Keymo Compatible For .223 Dead Air Suppressor - 1215km Suppressor Mount For Dead Air .223 Suppressor 1/2"x28 is a suppressor mount from Forward Controls Design. It's sold by 7 stores (2 in stock), from $83.70 to $104.99. The lowest in-stock price in the last 30 days was $104.50 at Ammunition Depot.
From the manufacturer
1215KM (1/2 x 28)is Forward Control Design's (FCD) latest offering in the Dead Air sound suppressor mounts line. Threaded for 1/2 x 28, 1215KM is a Keymo compatible brake, compatible with all Dead Air 223 caliber sound suppressors. Nobody likes brakes for 223 ARs, they're loud and obnoxious, and it's FCD's opinion an AR has low enough recoil, a brake is wholly unnecessary. While a brake will reduce felt recoil, it has unjustifiable compromises in increased concussion, noise and flash signature, one also wouldn't want to use a brake from inside a vehicle or indoors, these are trade offs a flash suppressor doesn't have. That said, a brake for a sound suppressor Mfg: Forward Controls Design Llc
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