Davidson Defense Paragon 16" 8.6 BLK AR-10 Complete Upper, Suppressor Ready, 1:3 Twist, M-LOK

Suppressor Ready Paragon 16-Inch Carbine-Gas 8.6 Blackout AR-10 Complete Upper Build

This Davidson Defense complete upper delivers suppressor-ready performance in 8.6 Blackout, a cartridge designed specifically for subsonic shooting. The 16-inch Parkerized barrel pairs with a 1:3 twist rate optimized for heavier subsonic loads, while the carbine-length gas system keeps cycling reliable across a range of ammunition weights. The free-float M-LOK handguard isolates the barrel for consistent accuracy, and the DPMS low-profile upper receiver accepts standard AR-10 components. The M18x1.5 muzzle thread accepts common suppressor attachments, making this upper ready for sound-reduction setups without modification.

Key Features

• 16-inch Parkerized SOCOM profile barrel with 1:3 twist rate for subsonic 8.6 Blackout loads
• Carbine-length gas system with adjustable low-profile gas block for cycling control
• Free-float 15-inch M-LOK handguard for isolated barrel performance
• DPMS low-profile billet upper receiver with Type III hardcoat black anodize
• Suppressor-ready M18x1.5 muzzle thread
• Includes Recoil Technologies LR-308 bolt carrier group and LR-308 charging handle
• Carbine-length stainless steel gas tube with .875-inch adjustable gas block

Perfect For

• Shooters building suppressed 8.6 Blackout rifles for subsonic performance
• Hunters and sport shooters using heavier subsonic ammunition
• Builders looking for a complete upper with matched components
• Those prioritizing accuracy with free-float barrel isolation

Suppressor Ready Configuration

This upper ships without a muzzle device or suppressor attached, giving you flexibility to select your own sound reduction setup. The M18x1.5 thread standard accepts a wide range of suppressors designed for large-bore cartridges. The carbine-length gas system is tuned for reliable cycling with subsonic loads, which is critical when running suppressed since subsonic ammunition produces less gas pressure than standard loads. Configuration depends on your suppressor choice and ammunition selection.

8.6 Blackout Platform Compatibility

The Recoil Technologies bolt carrier group is optimized for .308 Winchester platforms and also cycles .6.5 Creedmoor and .243 Winchester. This upper is built on the DPMS low-profile pattern, which is the standard for modern AR-10 lowers. The complete upper includes everything except the lower receiver and muzzle device, so you'll need a compatible LR-308 lower to complete your rifle.

Why Carbine-Length Gas for Subsonic Loads

The shorter carbine-length gas tube reduces dwell time compared to rifle-length systems, which helps maintain reliable cycling with subsonic ammunition. Subsonic 8.6 Blackout rounds generate less gas pressure than standard loads, so the carbine system's design ensures the bolt carrier group cycles fully without short-stroking. This matters for suppressed shooting where you want consistent, reliable operation across a variety of ammunition weights.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. May Dropship from Davidson Defense. Verify suppressor compatibility before use. Ensure secure mounting before operation. Use only in accordance with applicable laws. BCG and charging handle are included. Lower receiver not included.