M4A1 Nylon Gearbox Housing Kit

  • Sale
  • $32.00
  • Regular price $37.00


Finally we can do away with the fear that our gearbox housing will break at events. This nylon gearbox housing looks and feels like quality! Featuring 2mm thick nylon walls and reinforced in the areas that count such as the back of the housing which holds the spring retainer in.

This kit includes:

  1. Nylon gearbox shell
  2. Nylon sport trigger
  3. Springs for the tappet plate, trigger and anti-reverse latch
  4. 8mm bearings
  5. Nylon screws