Aero Precision AR15 Forward Assist Assembly Kit Black. These Aero Precision AR15 Upper Parts feature a forward assist roll pin that has exceptional holding power and strength. In addition the Aero Precision AR15 Forward Assist Kit utilizes a forward assist spring meaning it can withstand a lot of pressure and inactivity. The Aero Precision AR15 Assembly Kit is the perfect choice for any gun enthusiast looking to upgrade their AR15 and M5 .308. Specifications for Aero Precision AR15 Forward Assist Assembly Kit: Manufacturer: Aero Precision Color: Black Condition: New Country of Origin: USA Aero Precision Forward Assist Kit 29D-FRA-AR15FWAAK Forward Assist Assembly Forward Assist Spring Forward Assist Roll Pin Package Contents: Aero Precision AR15 Forward Assist Assembly Kit 29D-FRA-AR15FWAAK Aero Precision APRH100003: AR15 Forward Assist Assembly Kit Black