Kit upgrade for Kar98k SW sniper rifle AirsoftPro

Kit upgrade for Kar98k SW sniper rifle AirsoftPro, suitable for Snow Wolf Kar98k spring sniper rifles.

The kit includes all the parts needed for a speed upgrade.

Aluminum piston:
- durable and light compared to the original plastic piston
- provided with 6 air channels to improve sealing
- sealing o-ring
- weight: 19 g
- length: 79 mm
- inner diameter: 12 mm
- outer diameter: 19.8 mm

Spring guide:
- made of stainless steel
- compatibility with original SW and AirsofPro upgrade springs

Spring 140 m/s:
- made of quality steel
- treated against corrosion
- outer diameter 11.3 mm
- length 170 mm.

Spring guide stopper and piston sear
- made of steel
- ensures durability, stability of the parts, precise axial spring guide seat in the cylinder (the original stopper is off-axis).