HK Army Crash Knee Pads - HSTL Camo - Small/Medium gas rifles The tool-less ZeRO-D system is

The tool-less ZeRO-D system is now directly threaded onto the body for easier maintenance and reliability

The Blitz 3 is a union of form and function that is better in every measure

Valve automatically seals upon reload to save CO2

Male Top Oring (2)

It uses the same system of straight pull mechanism as the original R93

HK Army Crash Knee Pads - HSTL Camo - Small/Medium gas rifles The tool-less ZeRO-D system isIntroducing the HK Army Crash Knee Pad System. Designed for high impact performance, with comfort and flexibility in mind. The dense, contour, dual layered pad system absorbs shock and reduces knee joint impact. Say good bye to uncomfortable, tightening straps; The 4 way stretch, inner lining provides added coverage and maximum breath ability. Enhanced comfort and durability Contour, dual layered, high impact padding Neoprene upper leg support