JM Gen9 J9 M4A1 Hop Up Upgrade your toy blasters and

Upgrade your toy blasters and nerf guns with the Ahtech Infinity XT30 SM Tamiya Plug 2-3S LiPo Battery

23 RPS with 11

Motor type: 370

it can withstand an impact of 800G ten thousand times

JM Gen9 J9 M4A1 Hop Up Upgrade your toy blasters andIncrease your accuracy and shooting distance with the JM Gen9 J9 M4A1 Hop Up. This high quality DK Hop Up is fully adjustable and applies back spin on gel balls for improved performance. Made with 3d printed PLA and designed specifically for the JM Gen9 M4A1 gel blaster. Features: Hop ups increase shooting distance and improve accuracy by applying back spin on the gel balls as they leave the barrel. High quality DK Hop Up. Fully Adjustable. Perfect