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

Lattice 16" 8.6 BLK AR-10 Complete Upper, Suppressor Ready

This is a complete upper assembly built for 8.6 Blackout on the AR-10 platform. The 16-inch barrel is threaded for suppressors and uses a 1:3 twist rate optimized for heavy subsonic rounds. The freefloat M-LOK handguard keeps the barrel free from contact, supporting consistent accuracy. An adjustable gas block lets you tune cycling for suppressed or unsuppressed fire. The nitride BCG and carbine-length gas system round out a ready-to-mount configuration.

Key Features

• 16-inch 8.6 Blackout barrel with suppressor-ready M18x1.5 threading
• Freefloat M-LOK handguard, 15 inches, maintains barrel accuracy
• Adjustable gas block for suppressed and unsuppressed tuning
• Nitride BCG with LR-308 bolt pattern
• AR-10 high-profile upper receiver with forward assist and ejection port door
• Carbine-length gas system with stainless steel tube

Perfect For

• Shooters building suppressed 8.6 Blackout rifles
• Precision-focused builds requiring freefloat barrel support
• AR-10 platform customization with tunable gas systems
• Long-range or subsonic ammunition testing

Suppressor-Ready Configuration

This upper ships without a muzzle device and is configured for suppressor mounting. The M18x1.5 threads accept standard suppressors designed for larger calibers. The adjustable gas block is essential for suppressed shooting, allowing you to reduce backpressure and cycling speed when running a can. Verify your suppressor is rated for 8.6 Blackout before mounting.

8.6 Blackout Optimized

The 1:3 twist rate is specifically matched to 8.6 Blackout ammunition, particularly heavier subsonic loads that dominate this caliber. The SOCOM barrel profile balances weight and durability. Parkerized finish resists corrosion in field conditions. This configuration prioritizes subsonic performance over supersonic velocity, making it ideal for suppressed applications where hearing safety and sound signature matter.

Freefloat Accuracy Platform

The Crest Series handguard uses true freefloat design, keeping the barrel completely clear of the upper receiver. This eliminates harmonic interference that degrades shot-to-shot consistency. The M-LOK interface provides modular mounting for optics, lights, and other accessories without affecting barrel harmonics. High-profile geometry accommodates lower-third optic mounts common on AR-10 builds.

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