The Guarder Steel KSC M4 Trigger is a precision trigger for improved durability and performance in gas blowback airsoft rifles. This part should fit KWA LM4 PTR airsoft guns as well.
The original trigger features alloy construction with a steel insert. The Guarder upgrade trigger is fully steel, and is designed for long-term durability.
Note: Some fitting may be required for proper operation in the KWA LM4.