Daniel Defense DDM4 300S .300 Black 10.3" Bbl Complete Upper Receiver Group 23-088-19020-047
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Daniel Defense
Overview
The Daniel Defense DDM4 300S is a complete upper receiver group designed for the AR-15 platform, featuring a 10.3" barrel chambered in .300 Blackout. With a twist rate of 1:8 and a pistol-length gas system, this upper is optimized for reliable cycling and accuracy in a compact configuration. This upper is commonly used in builds where .300 Blackout is preferred, making it a solid choice for short-barreled applications.
Specifications
Daniel Defense DDM4 300S .300 Black 10.3" Bbl Complete Upper Receiver Group 23-088-19020-047
Available Merchants(5)
Prices checked
Price Alert
September 2026 on GunPartPicker
Daniel Defense DDM4 300S .300 Black 10.3" Bbl Complete Upper Receiver Group 23-088-19020-047 ranked #168 of the 615 upper receivers builders added on GunPartPicker in September 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #217 of the 1,682 upper receivers builders have added.
It was in stock most days in September 2026, but today 2 of the 5 retailers we track have it in stock. It dipped to $1,392 at KY Gun Company for a stretch in September 2026, under its usual $1,462, so sales do come around. Buying today, the lowest price is $1,392 at BattleHawk Armory, which matches the best price we saw in September.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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