Fire Mode: Full/Semi Auto

All PolarStar single-solenoid systems (JACK and F1) use the same electronics

1X Flip-Up Rear Sight

Choose from various colors to match your theme and you are all set to charge through the objective

Lancer Tactical Airsoft Irregular-Pitch Spring M100 [320-390 FPS] ac-103gh Fire Mode: Full/Semi AutoSpecifications Brand: Lancer Tactical Material: Stainless Steel Muzzle Velocity: 320 390 FPS Color: Black Compatibility: All AEG Gearboxes Package Includes: 1X Spring Features Non linear spring coils puts less stress on gearbox Constructed from high quality anodized stainless steel piano wire for increased tension and durability Universally compatible with all airsoft AEG gearboxes 140% Increased spring power (estimate based on average power output)