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Daniel Defense Complete Upper Black .300 AAC Blackout 10.3-inch
Sold byGrabAGun•Posted Apr 27, 2026
Compare prices for Daniel Defense DDM4 300 S AR-15 Pistol Complete Upper Receiver 300 AAC Blackout 10.3" Barrel$1,351.00
$1,452.00
You save $101.00 (7% off)
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Deal Summary
- Currently in stock.
- Caliber: 300blk
- Category: parts
Price History
Deal Details
Daniel Defense 300 S Upper The Daniel Defense M4 300S Upper Receiver Group was designed for those demanding a high-performance short-barrel rifle chambered in the versatile 300 Blackout cartridge. Built around a Cold Hammer Forged 10.3" Strength-to-Weight (S2WA(R)) profile barrel the 300S URG delivers .30 caliber projectiles with greater muzzle energy than comparable 5.56mm platforms. The barrel is equipped with a DD improved Flash Suppressor to reduce flash signature and a low-profile pist
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