Daniel Defense AR15 10.3" 5.56 NATO MK18 RIII URG, FDE
$1,527.00 at MidwayUSA · 7 stores
In stock
Daniel Defense MK18 Upper Receiver Group - Black 10.3"
Daniel Defense · Upper Receiver
No ratings yetBest price
$1,527.00at Brownells
In stock Lowest in 30 dayschecked Nov 10, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells Best price | $1,527.00checked Nov 10, 2026 | In stock | Buy at Brownells | |
| MidwayUSA | $1,527.00checked Nov 10, 2026 | In stock | Buy at MidwayUSA | |
| AR15Discounts | $1,366.00checked Nov 10, 2026 | Check store | Buy at AR15Discounts | |
| Dirty Bird | $1,366.00checked Nov 10, 2026 | Check store | Buy at Dirty Bird | |
| OpticsPlanet | $1,527.00Salechecked Nov 10, 2026 | Out of stock | Buy at OpticsPlanet | |
| 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: $1,527.00 at Brownells. Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| AR15Discounts | $1,366.00 | $1,366.00 | $1,366.00 |
| Brownells | $1,527.00 | $1,527.00 | $1,527.00 |
| Dirty Bird | $1,366.00 | $1,366.00 | $1,366.00 |
| MidwayUSA | $1,527.00 | $1,527.00 | $1,527.00 |
| OpticsPlanet | $1,527.00 | $1,527.00 | $1,527.00 |
Since Sep 27, 2026.
About this part
The Daniel Defense MK18 Upper Receiver Group - Black 10.3" is a 10.3" 5.56 / .223 upper receiver from Daniel Defense. It's sold by 5 stores (2 in stock), from $1,366.00 to $1,527.00. The lowest in-stock price in the last 30 days was $1,527.00 at Brownells.
Fits and works with
- Caliber
- 5.56 / .223 · Shop matching ammo
- Bolt
- Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
- Barrel length
- 10.3" · Handguards
Specifications
- Manufacturer
- Daniel Defense
- Color
- Black
- Platform
- AR-15
- Caliber
- .223 / 5.56
- Barrel length
- 10.3"
From the manufacturer
Daniel Defense manufactures the highest quality complete AR15 upper receivers on the market today! Every Daniel Defense upper is painstakingly hand assembled, quality assurance tested, and test fired to ensure that the highest quality product makes it to the hands of our customers. The Daniel Defense M4 URG, MK18 comes complete with bolt carrier group and charging handle, 10.3″ Cold Hammer Forged Barrel, RIS II MK18 Rail System in Black or Flat Dark Earth, and Daniel Defense low profile gas block. MATERIALS & CONSTRUCTION UPPER RECEIVER: Mil-Spec with Indexing Marks and M4 Feed Ramps. CNC Machined of 7075-T6 Aluminum, Type III Hard Coat AnodizedBARREL: Chrome Moly Vanadium Steel, Cold Hammer Forged, 1:7 twist, 10.3″ Government Profile, Chrome Lined, MP tested, and Mil-Spec Heavy Phosphate CoatedGAS SYSTEM: Pinned Low Profile Gas Block CNC Machined of 4140 hardened steel with Mil-Spec Heavy Phosphate Coating, Carbine Length, Direct ImpingementMUZZLE DEVICE: Daniel Defense Flash Suppressor, 17-4 PH Stainless Steel, Salt Bath Nitride FinishedBOLT CARRIER GROUP: M16 Profile, Mil-Spec MP Tested, Chrome Lined, Properly Staked Gas KeySIGHTS: Sold SeparatelyHANDGUARD: Daniel Defense RIS II MK18, CNC Machined of 6061-T6 Aluminum, Type III Hard Coat AnodizedRAIL PANELS: Daniel Defense Rail Panels made from Santoprene, heat resistant to 300° F.Made in the USA! Specs:Caliber - 5.56mm NATOGas System - CarbineBarrel Length - 10.3"Profile - GovernmentProduct Weight- 3 lbs 8 oz
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