Action Army AAP-01 Threaded Receiver Adapter (14mm CCW) Flashhiders and Muzzle Brake It shares the same spring

It shares the same spring as the Fusion Engine™ with both light and heavy spring options available to adjust the loading force

The ATP-SE also features an interchangeable back strap that allows the shooter to customize the fit and feel to their personal needs

while the dot-matrix ID panel lets you mark your mags with numbers or initials for easy identification

Inner Barrel:208mm / 6

Action Army AAP-01 Threaded Receiver Adapter (14mm CCW) Flashhiders and Muzzle Brake It shares the same springFeatures CNC aluminum alloy construction Allows 14mm flash hiders, muzzles, and mock suppressors to be used with your AAP 01 Scratch and fade resistant anodized finish Manufacturer: Action Army Specifications: Thread Direction: 14mm (Negative) externalCompatibility: For AAP 01 Assassin Airsoft gas blowback pistolsMaterial: Aluminum Alloy