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The AirsoftPro reinforced piston for SVD Dragunov airsoft rifles is a 4th generation upgrade piston designed for manual A&K, ACM, KOER SVD sniper rifles and compatible models. Gen. 4 features a lighter aluminum body, a two-piece piston head, a ball bearing, and a set of three interchangeable weights for fine-tuning piston weight. Thanks to its refined design, it offers high durability.

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ASPRO197
AirsoftPro precision hop-up unit for SVD Dragunov Gen.2 is a CNC-machined upgrade chamber for SVD airsoft sniper rifles. It is designed to provide more precise hop-up pressure adjustment and a more consistent BB trajectory. Compared to the original chamber, it features a metal hop-up lever, a 10-position rotary adjustment ring, and compatibility with...
ASPRO259
AirsoftPro stainless steel cylinder for the A&K SVD Dragunov is a durable upgrade cylinder designed for manual A&K SVD airsoft sniper rifles. It is made from stainless steel, offering high strength, excellent durability, and resistance to wear. The cylinder is compatible with both the original cylinder head and AirsoftPro upgrade cylinder heads, including...
4UAD006
4UANTUM SEAL Silicone Grease for Sealing by 4UAD in a transparent finish. High-viscosity sealing grease. Ideal for sealing repairs and preventing leaks from damaged O-rings. Suitable for electric AEGs, manual, GBB, CO2, and HPA gas guns. Content: 15 ml. Easy application with a pen applicator.
The fourth generation of the AirsoftPro reinforced piston builds on years of development while retaining the proven combination of a lightweight aluminum body and a steel sear catch, capable of withstanding even very powerful springs. The redesigned body is lighter, helping to increase muzzle velocity, especially when using low- to medium-power springs. The two-piece piston head combines an aluminum front section with 8 air channels for improved sealing and a rear POM guide collar that reduces friction and protects the cylinder surface. A ball bearing integrated inside the piston allows the spring to rotate freely during compression, reducing resistance. The package also includes three interchangeable weights, allowing the piston weight to be adjusted to suit different spring strengths and shooting characteristics.
The lightweight red anodized body reduces piston weight, while the steel sear catch withstands even very powerful springs.
The aluminum front section with eight air channels improves air sealing, while the rear POM guide collar reduces friction and protects the cylinder interior.
The integrated bearing allows the spring to rotate during compression, reducing resistance and contributing to smoother operation.
The package includes plastic, aluminum, and brass weights, allowing the piston weight to be tuned for a specific rifle setup.
The piston is 4 mm shorter than the original design, increasing the usable cylinder volume for more efficient compressed air utilization.
| Variants | Gen. 4 |
| Color | Red |
| Body/receiver material | Metal |
| Piston head | Metal |