DPMS 16" DPM4 5.56 Quad-Rail Upper
$410.31 at OpticsPlanet · 2 stores
In stock Sale
Best price
$419.99at GunMag Warehouse
In stock checked Nov 7, 2026
Fits and works with
- Caliber
- 5.56 / .223 · Shop matching ammo
- Bolt
- Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
- Gas system
- Carbine · Handguards
- Barrel length
- 16" · Handguards
Specifications
- Manufacturer
- DPMS
- Platform
- AR-15
- Caliber
- 5.56 mm NATO
- Gas system
- Carbine
- Barrel length
- 16"
- Twist rate
- 1:7
- Length
- 13.5"
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| GunMag Warehouse Best price | $419.99checked Nov 7, 2026 | In stock | Buy at GunMag Warehouse | |
| Battlehawk Armory | $342.16checked Oct 28, 2026 | Check store | Buy at Battlehawk Armory | |
| OpticsPlanet | $371.88Salechecked Nov 13, 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: $371.88 at OpticsPlanet. Dashed line = out of stock. Tracking since Oct 14, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Battlehawk Armory | — | $342.16 | $342.16 |
| GunMag Warehouse | — | $379.99 | $419.99 |
| OpticsPlanet | $371.88 | $371.88 | $419.99 |
Since Oct 14, 2026.
About this part
The DPMS M-LOK 5.56x45mm NATO 16 inch Upper Receiver is a 16" 5.56 / .223 upper receiver from DPMS. It's sold by 3 stores (1 in stock), from $342.16 to $419.99. The lowest in-stock price in the last 30 days was $371.88 at OpticsPlanet.
From the manufacturer
DPMS M-Lok 5.56x45mm NATO 16 inch Upper Receiver One Size. 56 NATO with a 1: twist M4 barrel extension and a mid-length gas system. The A2 profile barrel is finished with Phosphate. Barrel is finished off with an .750in diameter low-profile gas block DPMS 13.5in Lightweight M-Lok Free Float Rail and an A2 flash hider. Upper: Forged 7075-T6 A3 AR upper is hard coat anodized black for durability. Featuring M4 feedramp cuts these upper upper receivers are made for us right here in the USA. Bolt Carrier Group: For AR15 and M16 rifles and carbines. Bolt is made of shot-peened Mil-spec Carpenter 158 steel. Gas key is secured with grade 8 fasteners and staked. Includes Charging Handle. Specifications for DPMS M-Lok 5.56x45mm NATO 16 inch Upper Receiver: Manufacturer: DPMS Caliber: 5.56x45mm NATO Barrel Length: 16 in Gas System Length: Carbine Length Barrel Twist Rate: 1-7 Finish: Hardcoat Anodized Fabric/Material: 7075 T6 Aluminum Handguard Length: 13.5 in Barrel Material: Chrome Moly Vanadium Mount Type: M-LOK Package Contents: DPMS M-Lok 5.56x45mm NATO 16 inch Upper Receiver DPMS DP51655120177: M-Lok 5.56x45mm NATO 16 inch Upper Receiver One Size
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