Unicorn Airsoft Hop Up Chamber For SIG Sauer P320 M17/ M18 GBB Airsoft (Chamber Only)

Key Feature High Quality Industrial Zinc Alloy Construction Airsoft Hop Up Chamber Features TDC adjustable hop system for consistent accuracy and performance TDC system offers improved consistency and reliability over the original system Suitable For SIG Sauer P320 M17/ M18 Gas Blow Back GBB Airsoft Pistol