For M4-A1 - Speed Series
- M100 Spring
- Rotary Spring Guide
- Tappet Plate
- Modular Gear Set (16.32.1)
- Selector Plate
- Poly Carb Piston
- Poly Carb Piston Head with Bearing
- Air Nozzle with Oring
- Steel 8mm Bushings
- Anti-Reverse Latch
- Modify 8mm Torus Mechbox
- Aluminum Type 1 Cylinder
- Aluminim Cylinder Head
- Cut Off Lever
- Low Resistant M4 Wiring Harness
- T-Connector (Not installed)