The work of your weapons is one of the main factors responsible for combat effectiveness. The compression and stability of the mechanism work depend on the AEG gearbox details, therefore, it is better to replace the walls with more durable ones, especially if you have high FPS.
Bullgear Gen.2 gearbox walls fit A&K M249 and PKM. These walls are more durable because they are made of high-quality duralumin on high-precision CNC machines. They also can withstand any FPS and provide better fixation of the entire mechanism.
The design of the walls is specified for the use of 9mm bearings (not included). Matches SHS inner details from other producers.
1. Excellently matches А&K machineguns.
2. High durable and reliable.
3. Easy to attach wires.
Weight: 400 gram