http://www.redwolfairsoft.com/redwolf/p ... odID=19560
PGC Gear Box Conversion Kit Set for TOP MP-40
Gear Box Conversion Kit Set for TOP MP-40 AEG. Modification to the AEG body is required, installation should be performed by professional.
Inside the box:
-Hop-up rubber
-Nozzle
-Cylinder head
-Piston head bearing
-M(130) Spring
Spring Guide
-Motor pad
-PGC Gear Box Set
-Manual
-CD (contains reference photos)
Price (USD) $355.00