Daniel Defense AR15 10.3" 5.56 NATO MK18 RIII URG
$1,465.07 at MidwayUSA · 4 stores
In stock Sale
Mk12 Mod 0 SPR Gen III 5.56mm 18" Bbl 1-8 Twist Upper FDE
Precision Reflex, Inc. · Upper Receiver
No ratings yetBest price
$1,470.50at MidwayUSA
Out of stock checked Oct 1, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| MidwayUSA Best price | $1,470.50checked Oct 1, 2026 | Out of stock | Buy at MidwayUSA | |
| Brownells | $1,729.00checked Oct 1, 2026 | Out of stock | Buy at Brownells |
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: $1,470.50 at MidwayUSA. Dashed line = out of stock. Tracking since Sep 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Brownells | $1,729.00 | $1,729.00 | $1,729.00 |
| MidwayUSA | $1,470.50 | $1,470.50 | $1,470.50 |
Since Sep 28, 2026.
About this part
The Mk12 Mod 0 SPR Gen III 5.56mm 18" Bbl 1-8 Twist Upper FDE is an 18" 5.56 / .223 upper receiver from Precision Reflex, Inc.. It's sold by 2 stores, from $1,470.50 to $1,729.00. The lowest in-stock price in the last 30 days was $1,470.50 at MidwayUSA.
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
- 18" · Handguards
Specifications
- Manufacturer
- Precision Reflex, Inc.
- Color
- Flat Dark Earth
- Platform
- AR-15
- Caliber
- 5.56 mm NATO
From the manufacturer
This Mark 12 Mod 0, ready to shoot 5.56 upper is equipped with a 18" Douglas 416 stainless steel barrel 1-7 or 1-8 twist with a fitted Full Auto bolt carrier, flat-top receiver, PRi flip up front gas block front sight and rear sight, rifle length gas tube, a Gas Buster charging handle with big latch, brake and collar. The system also comes with a Gen III Rifle length carbon fiber free float forearm and a full length top rail with PEQ II removable rail section. Black or Flat Dark Earth Finish. Mfg: Precision Reflex, Inc.
Similar upper receiver
Group GL/Ssc 5.56mm 12.5" Govt Prof Bbl Assembled Upper Rcvr FDE
$1,476.00 at MidwayUSA · 4 stores
In stock
AR-15 Super Duty Mod1 5.56x45 16" Bbl Complete Upper DDC
$1,450.00 at Brownells · 3 stores
In stock
AR-15 Super Duty Mod1 5.56x45 10.3" Bbl Complete Upper DDC
$1,450.00 at MidwayUSA · 3 stores
In stock
Mk12 Mod 0 SPR Gen II 5.56mm 18" Bbl 1-7 Twist Upper FDE
$1,510.45 at MidwayUSA · 3 stores
In stock
Mk111 Mod 2-M 223 Wylde 11.85" Bbl Complete Upper
$1,399.95 at Brownells · 6 stores
In stock
Rating
No ratings yet
Log in to rate this part.
Comments
Please log in to read and leave comments.