KWA High Power Bolt Assembly for LM4 M4 Series Airsoft GBB Rifles
Features:
- Heavy duty steel bolt carrier & carrier key
- Weather resistant parkerized finish
- Lightweight reinforced polymer bolt
- Reinforced internal valves
- Increases stock performance by about 50-70 fps
- Improved range
- Direct drop-in replacement part
- Complete bolt assembly
Compatibility: For KWA LM4 M4 Series Airsoft GBB Rifles
Material: Steel, Nylon Fiber Polymer
Manufacturer: KWA