The KPP Long VSR-10 piston body is longer than a standard piston, which reduces the usable cylinder volume and thereby improves efficiency in upgraded sniper rifles with short inner barrels. The extended piston body also allows the installation of longer springs.
Materials & Construction
- Body material: Aluminum, combining low weight with rigidity.
- Sear contact section: Made from stainless steel for durability.
- O-ring sealing system: High-quality Viton or polyacetal seal to reduce internal friction and air leakage.
- “Long” body profile: Extended length compared to a standard piston, making it particularly suitable for full-volume cylinders and VSR-10 based sniper rifles equipped with short inner barrels (e.g., G-Spec models with ~300 mm barrels).
Compatibility
According to the manufacturer, compatible with the VSR-10 platform and similar clones that use a 90° sear system.
Why choose this model?
- The longer body allows the use of larger springs and full-volume cylinders, increasing the available air and improving shot energy output.
- Better sealing and reduced friction help stabilize muzzle velocity and improve accuracy.
- The aluminum body and stainless steel rear section increase durability and structural rigidity in high-tension spring setups.
Notes
- This is the Long version — ensure that your cylinder and barrel length/volume match the extended body. This piston performs best with shorter barrels.
- The 90° design requires a compatible 90-degree trigger mechanism.
