[Service] AR-15 Upper Receiver Assembly

As our in-house armorer has shipped out for the season, we have contracted with a trusted local gunsmith for work orders.

The assembly process includes:

• Installation of forward assist assembly and ejection port cover onto a stripped upper receiver (if applicable)
• Installation of gas block & gas tube (will dimple barrel if required; drilling and pinning a gas block is a separate charge available here)
• Checking for gas tube alignment in receiver
• Barrel installation utilizing thermal fitting and alignment when necessary
• Handguard installation utilizing manufacturer-specific barrel nut wrenches, torque values, anti-seize grease