4:adjustable trousers mouth&knees size with Velcro
Inner barrel size: 145mmcolor: tan
7v tamiya lipo battery with usb charger
The front and rear bulletproof plate positions are added with thickened EVA soft rubber lining version
Bullet launch kinetic energy 0-500J
Hero helmet Russian 99 and explosion-proof helmet clone 6B26 steel tactical 3 orders color:green 4:adjustable trousers mouth&knees size withProduct technical parameters: 1, implementation standard: GA296 20012, absorption collision quality performance test, helmet after high temperature, low temperature, rain. Wear on the corresponding head type, each helmet can choose two places, both not less than 120mm. Each free fall from 1m height 1 time, long acceleration peak =400g, helmet shell does not appear crack. 3, puncture test: 3kg steel cone from 1m high impact puncture top twice, spacing