Daniel Defense

Daniel Defense DD4 Black RIII Barreled Upper Receiver - 11.5" - Primary Arms Exclusive

All Daniel Defense upper receivers

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Daniel Defense DD4 Black RIII Barreled Upper Receiver - 11.5" - Primary Arms Exclusive - Upper Receiver for AR-15 - view 1
Daniel Defense DD4 Black RIII Barreled Upper Receiver - 11.5" - Primary Arms Exclusive - Upper Receiver for AR-15 - view 2
Daniel Defense DD4 Black RIII Barreled Upper Receiver - 11.5" - Primary Arms Exclusive - Upper Receiver for AR-15 - view 3
Daniel Defense DD4 Black RIII Barreled Upper Receiver - 11.5" - Primary Arms Exclusive - Upper Receiver for AR-15 - view 4
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Daniel Defense

Overview

The Daniel Defense DD4 Black RIII Barreled Upper Receiver is a complete assembly designed for the AR-15 platform, featuring an 11.5-inch barrel chambered in 5.56 NATO. This upper receiver type A4 offers reliability and performance for those looking to build a compact yet effective firearm. This type of upper is commonly utilized in short-barreled rifle builds, where maneuverability and versatility are key considerations.

Specifications

MPNDD-PA-EXCLUSIVE-11-5-556-BLK
PlatformAR-15
Barrel Length11.5
AssemblyComplete
ColorBlack
Caliber5.56 NATO
Receiver TypeA4

Available Merchants(1)

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$1,000
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Build history on GunPartPicker

Builders have been adding the Daniel Defense DD4 Black RIII Barreled Upper Receiver - 11.5" - Primary Arms Exclusive to their builds on GunPartPicker since March 2026. All time, it ranks #222 of the 1,709 upper receivers builders have added.

It was out of stock everywhere we track for all of September 2026, and today the one retailer we track is out of stock. Listed prices start at $999.99 at Primary Arms for when it comes back.

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Frequently Built With

The part most often added in each category by the builds that include this one

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Radian Weapons AR-15 Raptor-Lt Ambidextrous Charging Handle Black

Charging Handle$73in 17% of them
PSA AR-15 Complete Lower Magpul MOE EPT Edition - Flat Dark Earth, No Magazine

PSA AR-15 Complete Lower Magpul MOE EPT Edition - Flat Dark Earth, No Magazine

Lower Receiver$180in 17% of them
Rise Armament RA100BLK RA-100 Trigger Black Nitride Curved Fits AR-Platform

Rise Armament RA100BLK RA-100 Trigger Black Nitride Curved Fits AR-Platform

Trigger$100in 17% of them
Daniel Defense Collapsible Buttstock - Black

Daniel Defense Collapsible Buttstock - Black

Stock & Brace$82in 33% of them
Geissele Automatics Reliability Enhanced Bolt Carrier Group 5.56mm

Geissele Automatics Reliability Enhanced Bolt Carrier Group 5.56mm

Bolt Carrier Group$385 · out of stockin 17% of them
CMMG AR15 Ambi Mag Catch, Black - 55AFF6E

CMMG AR15 Ambi Mag Catch, Black - 55AFF6E

Magazine Release$30in 33% of them

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Gas System

50.3%
Mid-Length50.3%
Carbine25.7%
Pistol11.4%
Rifle10.9%
Blowback1.3%
Other0.3%

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