Retro Arms full tooth piston with 17,5 steel teeth for SR25 / L85 / MOD25 / BR10 (Gen. 2)
Retro Arms Piston with 17.5 steel teeth - full tooth version.
Suitable for all 19 tooth systems such as Begadi Sport MOD25 (SR25).
Features:
- Reinforced plastic body made of polyamide PA6.6 with 30% carbon fiber and 5% molybdenum
- Due to the addition of molybdenum additive, the piston body does not need to be lubricated
- Tooth row made of CNC milled 14260 (54SiCr6) spring steel
- The steel is specially hardened to 52 - 54 HRC, so it is very strong, but still has enough flexibility not to become brittle
- It is recommended by the manufacturer to lubricate the steel teeth with Vaseline
- The piston is recommended by the manufacturer for all spring strengths
![](/catalog/images/b-retroarms-7228-piston-19zahn-version-details1.jpg)
![](/catalog/images/b-retroarms-7228-piston-19zahn-version-details2.jpg)
![](/catalog/images/b-retroarms-7228-piston-19zahn-version-details3.jpg)
![](/catalog/images/b-retroarms-7228-piston-19zahn-version-details4.jpg)
Suitable for all 19 tooth systems such as Begadi Sport MOD25 (SR25).
Features:
- Reinforced plastic body made of polyamide PA6.6 with 30% carbon fiber and 5% molybdenum
- Due to the addition of molybdenum additive, the piston body does not need to be lubricated
- Tooth row made of CNC milled 14260 (54SiCr6) spring steel
- The steel is specially hardened to 52 - 54 HRC, so it is very strong, but still has enough flexibility not to become brittle
- It is recommended by the manufacturer to lubricate the steel teeth with Vaseline
- The piston is recommended by the manufacturer for all spring strengths
![](/catalog/images/b-retroarms-7228-piston-19zahn-version-details1.jpg)
![](/catalog/images/b-retroarms-7228-piston-19zahn-version-details2.jpg)
![](/catalog/images/b-retroarms-7228-piston-19zahn-version-details3.jpg)
![](/catalog/images/b-retroarms-7228-piston-19zahn-version-details4.jpg)