8.5" 300 BLK Complete Upper, NFA MLOK Handguard - Tungsten Cerakote
Sam Diego Tactical's 8.5" 300 Blackout Complete Upper in Tungsten Cerakote.
Cerakote applied by our partner Modern Arms Custom Koating.
- 8.5" 300 Blackout Barrel (1:7) w/Pistol Length Gas System
- New Frontier Armory AR15 Upper Receiver
- Aero Precision Upper Parts Kit (Dust Cover and Forward Assist)
- New Frontier Armory 7" M-LOK Handguard
- Aero Precision Low-Profile Gas Block
- Melanite Gas Tube
- A2 Muzzle Device
Does not include bolt carrier group or charging handle (sold separately).
Our complete upper receivers are assembled in-house, with barrels torqued to 45-60 ft-lbs, gas block set screws torqued to 30 in-lbs, and guaranteed against defects in components or assembly.