Upper Parts

Bolt Carrier Door Spring - Side Charging Uppers

Kaw Valley Precision

KVP Thread Adapter .578x28 to 5/8x24

New Frontier Armory

Muzzle Rise Eliminator - 5.56

Gas Tube - Mid Length

AR-15 Firing Pin

New Frontier Armory

Enhanced Bolt Carrier Group (BCG)

Gas Tube - Pistol Length

Gas Tube - Rifle Length

AR-15 Cam Pin

New Frontier Armory

6.5 Grendel BCG

Kaw Valley Precision

KVP Thread Adapter 1/2x28 to 5/8x24

Kaw Valley Precision

KVP XL PCC Linear Comp 1/2x36