Built for shooters who demand precision and performance, this 6mm ARC 16" SPR Upper delivers flat trajectories, tight groups, and reliable cycling. The 416R stainless steel SPR-profile barrel with a 1:7 twist is optimized for stabilizing modern high-BC bullets—giving you the edge at distance.
The adjustable carbine-length gas system lets you fine-tune recoil and function, while the 13.5" M-LOK free-float handguard provides a rigid, lightweight platform for improved accuracy and accessory mounting. Finished with a nitride bolt carrier group and birdcage flash hider, this upper is built to run smooth and stay on target.
Performance Highlights:
6mm ARC Chambering – flat shooting, long-range capable
16" 416R Stainless SPR Barrel – precision-focused design
1:7 Twist Rate – optimized for high-BC projectiles
Adjustable Carbine Gas System – tuned recoil & reliable cycling
13.5" M-LOK Handguard – lightweight, free-float accuracy
Nitride BCG – durable, dependable performance
Birdcage Flash Hider – effective flash suppression
Why This Upper Delivers:
Consistent accuracy at distance
Reduced recoil with adjustable tuning
Lightweight, balanced handling
Built for real-world reliability
Ideal For:
Precision AR builds
Predator & varmint hunting
Range and training use
DMR-style setups
