This custom-built HK416 by Prime Mech Airsoft utilizes the BOLT BRSS recoil shock system, engineered to deliver the powerful kick like a gas blowback rifle. Each high-end airsoft rifle, crafted in their French workshop, is designed for exceptional performance, featuring an ASTER II Bluetooth V3 system, 13:1 gears, and a brushless motor. This results in a quiet AEG with a remarkably fast and crisp trigger response, achieving 1.6 joules with 0.32g BBs.