BCA Service Spring Change Service Type:Quick Spring Change Compatibility – M4 airsoft guns:

Compatibility – M4 airsoft guns: Systema / KWA / GHK / G&P / VFC / Tokyo Marui (GBB only and requires adaptor ring)

Tactical 1911 Combat Custom from Tokyo Marui Strike Warrior

Tube Diameter:25mm

Design for HK45 Series Airsoft Gas Blow Back GBB Pistol

Does not include shells or optic

BCA Service Spring Change Service Type:Quick Spring Change Compatibility – M4 airsoft guns:BBA will change the spring on most AEGs and BASRs while you wait. After you provide us with a maximum FPS, we will return the gun to you in a 20 FPS range (without going higher than the limit). So, for instance, if you want 400 FPS, the gun will return to you shooting 380 400 FPS. Guns are classified as: Quick Spring Change Semi Quick Spring Change Spring Change Associated fees vary based upon classification. Please ask for more information if