![](http://rossieurope.com/296-large_default/sentinel-55-tau-black.jpg)
Gearbox:
• 18:1 Steel gears
• Piston with 14.5 steel teeth
• 8 mm Metal bushing
• QD spring guide
• Electronic trigger with active brake
• 6,02 mm precision barrel
• 180 mm inner barrel
• Metal outer barrel
• Weigth: 1950gr
• Length: 600mm-680mm
• CNC 5,5” handguardPolymer folding sights
• Polymer receiver
• Polymer stock tube
• Collapsible nylon fibre stock
• Metal hi-cap 300 bbs magazine