Bullgear Box Mag Insert for G&P Stoner M63A1 / MK63

Upgrade your G&P Stoner M63A1 / MK63 airsoft box magazine with the Bullgear automatic feed insert. Built around a simple, reliable mechanism, this insert features a powerful motor, aluminum gear, and adjustable feed speed to help you match magazine feeding to your LMG’s setup. An integrated on/off button keeps operation straightforward, while the spacious design provides plenty of room for a compatible battery. Automatic feeding operates without microphones, pressure sensors, lasers, LEDs, or magnetic connections to the gun. Features and specifications - Compatibility: G&P Stoner M63A1 / MK63 LMG box magazine - Feeding: Automatic feed with adjustable speed controller - Motor: Powerful motor with aluminum gear - Controls: Integrated on/off button - Recommended battery: 7.4V LiPo, 300 mAh or larger - Power connector: JST - Battery space: Generous room for battery placement Bullgear states that a 300 mAh battery provides enough power for approximately 20,000 shots. Actual runtime varies with feed speed, battery condition, and use. Feed adjustment tip: If you experience FPS drops or skipped shots, reduce the feed speed using the controller. Excessive feeding pressure against the nozzle may contribute to these issues. Please note: This product is an internal box magazine insert, not a complete box magazine.