Dragon Keymount Muzzle Brake 1/2"-28 .223 Rem/ 5.56mm
$115.99 at OpticsPlanet · 8 stores
In stock Sale
Best price
$128.99at OpticsPlanet
In stock Sale checked Oct 21, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| OpticsPlanet Best price | $128.99Salechecked Oct 21, 2026 | In stock | Buy at OpticsPlanet | |
| MidwayUSA | $128.99checked Oct 21, 2026 | In stock | Buy at MidwayUSA | |
| Ammunition Depot | $128.99checked Oct 21, 2026 | In stock | Buy at Ammunition Depot | |
| Battlehawk Armory | $101.12Salechecked Oct 21, 2026 | Check store | Buy at Battlehawk Armory | |
| Palmetto State Armory | $129.99Salechecked Oct 21, 2026 | Check store | Buy at Palmetto State Armory | |
| Sportsman's Warehouse | $142.99checked Oct 4, 2026 | Out of stock | Buy at Sportsman's Warehouse | |
| Rainier Arms | Check priceprice on the store's site | Check store | Buy at Rainier Arms |
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: $128.99 at Ammunition Depot. Dashed line = out of stock. Tracking since Sep 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Ammunition Depot | $128.99 | $128.99 | $142.99 |
| Battlehawk Armory | $101.12 | $101.12 | $101.12 |
| MidwayUSA | $128.99 | $128.99 | $128.99 |
| OpticsPlanet | $128.99 | $128.99 | $128.99 |
| Palmetto State Armory | $129.99 | $129.99 | $129.99 |
| Sportsman's Warehouse | — | $142.99 | $142.99 |
Since Sep 28, 2026.
About this part
The Lantac Dragon 5.56mm/.223 Cal W/Quick Detach GemTech Mount is a 5.56 / .223 muzzle device from Lantac. It's sold by 6 stores (3 in stock), from $101.12 to $142.99. The lowest in-stock price in the last 30 days was $128.99 at Ammunition Depot.
Fits and works with
- Caliber
- 5.56 / .223 · Shop matching ammo
Specifications
- Manufacturer
- Lantac
- Caliber
- 5.56 mm NATO
From the manufacturer
The DGN556B-QM™ is precision machined, hardened to 48Rc and Nitride finished for enhanced corrosion resistance. It features our patented gas handling system that reduces muzzle rise and recoil to zero, meaning that the only recoil felt by the shooter is from the movement of the carrier and buffer within the buffer tube. Its unique Short Energy Pulse system reduces length of recoil so that repeating shot energy cannot overlap and knock the shooter off target. Full auto fire is possible with massively reduced recoil and muzzle climb, meaning that all shots fall on target.With the addition of the Gemtech™ quick mount system it is now possible to mount any of the Gemtech Bi-lock suppressors to our brake. This includes ‘The One’ suppressor, Shield and older G5 models. Specs:Caliber: .223, 5.56X45mmMaterial: Hardened Milspec SteelFinish: NitrideDimensions: L: 2.57'', DIA Body: 0.862'' DIA Lugs:1.100'' Weight: 3.6ozThread: 1/2-28 UNEF R/HSerial Numbered for Quality ControlMade in the USA
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