Mk12 Mod 0 SPR Gen II 5.56mm 18" Bbl 1-7 Twist Upper FDE
$1,510.45 at MidwayUSA · 3 stores
In stock
Mk12 Mod 0 SPR Gen II 5.56mm 18" Bbl 1-8 Twist Upper Black
Precision Reflex, Inc. · Upper Receiver
No ratings yetBest price
$1,757.00at Brownells
In stock checked Oct 21, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells Best price | $1,757.00checked Oct 21, 2026 | In stock | Buy at Brownells | |
| Battlehawk Armory | $1,628.16Salechecked Oct 21, 2026 | Check store | Buy at Battlehawk Armory | |
| MidwayUSA | $1,510.45checked Oct 21, 2026 | Out of stock | Buy at MidwayUSA |
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: $1,757.00 at Brownells. Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Battlehawk Armory | $1,628.16 | $1,612.54 | $1,628.16 |
| Brownells | $1,757.00 | $1,757.00 | $1,757.00 |
| MidwayUSA | $1,510.45 | $1,510.45 | $1,510.45 |
Since Sep 27, 2026.
About this part
The Mk12 Mod 0 SPR Gen II 5.56mm 18" Bbl 1-8 Twist Upper Black is an 18" 5.56 / .223 upper receiver from Precision Reflex, Inc.. It's sold by 3 stores (1 in stock), from $1,510.45 to $1,757.00. The lowest in-stock price in the last 30 days was $1,757.00 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
- 18" · Handguards
Specifications
- Manufacturer
- Precision Reflex, Inc.
- Color
- Black
- Platform
- AR-15
- Caliber
- 5.56 mm NATO
- Barrel length
- 18"
From the manufacturer
Precision Reflex's Mark 12 Mod 0 SPR Gen II Upper Receiver is a complete, full-featured tactical upper that's fully assembled and ready to shoot...once you install it on a mil-spec lower receiver. It is fitted with PRI's Gen II Retro Carbon Fiber Forend that replicates the handguard of the U.S. Navy's Mk 12 Mod 0 Special Purpose Rifle. You get a mile-long, uninterrupted expanse of Picatinny top rail extending from the rear of the receiver to the front of the forend. (Maybe we exaggerate slightly - half a mile.) There are also short 3" lengths of Picatinny rail up front in the 3, 6 and 9 o'clock positions. The Mark 12 Mod 0 SPR Gen II Upper Receiver Mfg: Precision Reflex
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