Daniel Defense DDM4 300 S AR-15 Complete Upper 300 Blackout 10.3"

Bundle Package

by Daniel Defense

Report an issue with this product's data
Daniel Defense DDM4 300 S AR-15 Complete Upper 300 Blackout 10.3"

User Ratings

No ratings yet

Be the first to review this product

Retail: $1,496.00

The Daniel Defense DDM4 300 S Upper Receiver Group is a high-performance short-barrel AR-15 upper chambered in .300 AAC Blackout. It features a 10.3 inch cold hammer forged, chrome-lined Strength-to-Weight (S2W) profile barrel with a pistol-length, low-profile gas system and DD improved flash suppressor to reduce flash signature. The DDM4 Rail provides a full-length flat-top Picatinny rail for optic mounting and textured grip areas for control. Includes the Grip-N-Rip ambidextrous charging handle. Designed for .30 caliber projectiles with greater muzzle energy than comparable 5.56mm platforms.

Specifications

Manufacturer:
Daniel Defense
Category:
upper-receiver
Caliber:
.300 AAC Blackout
Platforms:
AR-15
Weight:
42 oz (2.63 lbs)
Length:
10.3"
UPC:
815604015134
MPN:
23-088-19020-047
Required Component:
Yes

Parts Cabinet

Track parts you own or plan to buy.

Where to Buy

Brownells
In Stock
$1392.00
EuroOptic
In Stock
$1199.99
KYGUNCO
In Stock
$1392.00
MidwayUSA
In Stock
$1351.00
Optics Planet
In Stock
$1392.00
Palmetto State Armory
Availability Unknown
$1351.00
Primary Arms
Availability Unknown
$1307.00

Have one to sell?

Sell on Marketplace View listing rules

Sponsored

MantisX

The smart way to train your AR build

Built your rifle — now train it. BlackBeardX installs in minutes and turns your AR into a full dry fire system with smart feedback on every pull.

Shop BlackBeardX

Price History

Current

$1,199.99

Lowest

$1,199.99

Highest

$1,392.00

Tap data points for details

Price Alert

Sign in to save a target price and receive an email when this component drops.

Sign In to Set Alert

What's Included in this Bundle

Upper Parts Kit
Daniel Defense DDM4 300 S Upper Parts Kit (implied)
Implied - typically included with complete uppers (e.g., forward assist/dust cover parts).
Barrel
10.3" Cold Hammer Forged S2W 300 Blackout Barrel (implied)
10.3" Strength-to-Weight cold hammer forged barrel stated in feed/page text.
Handguard or rails
Handguard / Rails (implied)
Implied - complete upper includes the handguard/rail assembly, but exact model not visible in provided HTML.
Bolt Carrier Group
Bolt Carrier Group (implied)
Implied - complete upper typically ships with BCG; not explicitly shown in provided HTML/structured data.
Charging Handle
Charging Handle (implied)
Implied - complete upper typically includes charging handle; not explicitly shown in provided HTML/structured data.
Bundle Price: $1,351.00

Builds Using This Part

No builds yet — be the first to use this part.

Related Guides

Guide

5.56 NATO, .223 Remington, and .223 Wylde: Chamber Differences Explained

A technical breakdown of the differences between 5.56 NATO, .223 Remington, and .223 Wylde chambers — what each accepts safely, and how to choose for your build.

5 min read

Guide

AR-10 Receiver Patterns: DPMS vs. Armalite Compatibility

The AR-10 has two incompatible receiver patterns — DPMS and Armalite — that look similar but do not share parts. This guide explains the differences and how to buy correctly.

6 min read

Guide

The AR-10 Platform: What It Is and How It Differs from the AR-15

A practical overview of the AR-10 — its origins, how it differs from the AR-15, available calibers, and when it makes more sense than a standard AR-15 build.

6 min read

Submit a Review

Reviews

Loading reviews…