ULTIMATE M135 Spring - Red Brand_Krytac Great quality knee pads from

Great quality knee pads from Invader Gear with a low profile for better fit and comfort

Standard on/off switch on the right side of the body

integrated MOSFETS and electronic trigger units (ETU)

Magnetic Charger included: Compact (45mm x 15mm x 11

Takes standard 12g CO2 capsules

ULTIMATE M135 Spring - Red Brand_Krytac Great quality knee pads fromHigh quality spring from ULTIMATE. This is the Red M135 spring from ASG Military specification spring steel which means the best possible steel for springs. The calibration test has been carried out on 6. 03 300mm barrel. Zero hopup with 0. 20g BB's. Progressive coiling Provides a soft start which eases stress on both mechanical and electrical parts. Closed and grinded ends Stable straight ends minimizes side bending which reduce ROF loss. Pre