Diamondback Firearms 223 Remington 556NATO 10" Black 1:8 Carbine Length Gas System 556C10M50B8R
$86.99 at Ammunition Depot · 5 stores
In stock
Best price
$88.00at Brownells
In stock checked Oct 2, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells Best price | $88.00checked Oct 2, 2026 | In stock | Buy at Brownells | |
| Ammunition Depot | $88.00checked Oct 2, 2026 | In stock | Buy at Ammunition Depot | |
| MidwayUSA | $88.00checked Oct 2, 2026 | In stock | Buy at MidwayUSA | |
| Battlehawk Armory | $77.29Salechecked Oct 2, 2026 | Check store | Buy at Battlehawk Armory | |
| OpticsPlanet | $88.00Salechecked Oct 2, 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: $88.00 at Ammunition Depot. Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Ammunition Depot | $88.00 | $88.00 | $88.00 |
| Battlehawk Armory | $77.29 | $77.29 | $77.29 |
| Brownells | $88.00 | $88.00 | $88.00 |
| MidwayUSA | $88.00 | $88.00 | $88.00 |
| OpticsPlanet | $88.00 | $88.00 | $88.00 |
Since Sep 27, 2026.
About this part
The Mk 12 Gas Block, Commercial, .750 is a gas system part from Daniel Defense. It's sold by 5 stores (3 in stock), from $77.29 to $88.00. The lowest in-stock price in the last 30 days was $88.00 at Ammunition Depot.
Fits and works with
- Gas block
- 0.75" diameter · Gas blocks
Specifications
- Manufacturer
- Daniel Defense
- Size
- .750
- Material
- Steel
From the manufacturer
Daniel Defense was awarded the Naval Surface Warfare Center - Crane Division contract for the MK12 low profile gas block. As a result Daniel Defense is able to offer this gas block commercially. This gas block is built to Crane specification for USSOCOM. Hardened 416 Stainless Steel Black Oxide Coated Precision CNC Machined Weights 1.9 oz Made in USA INCLUDES: Low profile gas block (2) set screws Gas tube roll pin 0.5 ml. LOCTITE 262 Threadlocker DISCLAIMER The MK12 Gas Block is only compatible with the RIS II (M4A1 & MK18) family of rail systems manufactured by Daniel Defense. It is not compatible with any ot Mfg: Daniel Defense
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