[Set] M906A Fire Control System Edition [DE] + Red dot sight SCRAPPER 1X20 MICRO [Vector Optics]

Replica category referring to general platform types, e.g. AK, AR15.

Fire modes available in the replica (e.g. semi-auto, full-auto, burst), affecting the firing style.

Battery connector type (e.g. Tamiya, T-Deans), important when choosing a battery and charger.

Type of internal replica mechanism (e.g. V2, V3), defining the standard and parts compatibility.

BB hop-up system improving range and accuracy by applying backspin, extending the flat trajectory.

Recommended BB weight for use with the replica.

Individual designation identifying a specific replica unit.

Number of BBs the magazine can hold.

BB muzzle energy expressed in joules, measured using 0.20 g BBs, defining the actual force delivered.

BB velocity after leaving the barrel, expressed in feet per second (FPS), measured using 0.20 g BBs and without hop-up applied.

Electronic unit improving gearbox operation by controlling the gear cycle and enhancing trigger response. Some ETUs allow programmable settings to customize replica performance.