This Internals bundle deal help bring more durability and easy of use to your AAP-01. The Action Army Steel Hammer helps mitigate the known hammer failure on the original AAP-01. With this part, you can shoot Semi and Full Auto with no worries about hammer failure. The Rotary Hop Up takes the already amazing AAP hop up and upgrades it to rotary style for easy hop up adjustments.

Bundle deal includes:

1 - Action Army CNC Steel Hammer

1 - Action Army AAP-01 Rotary CNC Hop-Up Chamber