CowCow Enhanced Stainless Steel Sear Perfect upgrade for a custom built hi-capa. Highlighted features Precision CNC machined Stainless Steel Lighter and Crispy trigger pull feeling Consistent and Durable Compatible with stock TM Hi-Capa frame MAF Polishing Technology to make all surface smoother For TM Hi-CAPA *PS: Please note: installing parts / assemble /fitting airsoft gun will need intermediate knowledge; for expert or airsoft gunsmith. Please refer to your airsoft gunsmith for proper installation / fitting. Fitting may be needed as the condition of each airsoft gun might be different. Regular maintenance is needed for all airsoft guns in order to keep it in good working condition and reduce wear out issue on parts. The actual performance is based on the overall setting on your airsoft gun. Please consult your airsoft gunsmith for advising.