Airtech Studios Speed Flat Trigger for Krytac Kriss Vector AEG (Red) PTW Internal there are more than few

there are more than few new and original features in HK417

Tokyo Marui M1A1 Airsoft AEG

Not all tank valves are built the same and you need to do with the height of the pin located at the center of the valve

Quick Swap Stock

Airtech Studios Speed Flat Trigger for Krytac Kriss Vector AEG (Red) PTW Internal there are more than fewThe SFTB Speed Flat Trigger Blade is designed specially for the Krytac Kriss Vector that will give players the ability to tune up the sensitivity of the trigger response to suit their play style. Using the SFTB, players can adjust the sensitivity and tension using the screws and spring included. Airtech Studios Speed Flat Trigger for Krytac Kriss Vector AEG (Red) Snappy Hairline Trigger Response Fast React When It Matters The Most! Fully Adjustable