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9mm upgrade spring for sniper rifles -M170 (560 FPS) [AirsoftPro]![9mm upgrade spring for sniper rifles -M170 (560 FPS) [AirsoftPro]](https://airsoftpro.cz/images/stories/virtuemart/product/airsoftpro-9mm-upgrade-spring-sniper-rifles-2.jpg)
9mm upgrade spring for sniper rifles -M170 (560 FPS) [AirsoftPro]![9mm upgrade spring for sniper rifles -M170 (560 FPS) [AirsoftPro]](https://airsoftpro.cz/images/stories/virtuemart/product/airsoftpro-9mm-upgrade-spring-sniper-rifles-3.jpg)
9mm upgrade spring for sniper rifles -M170 (560 FPS) [AirsoftPro]![9mm upgrade spring for sniper rifles -M170 (560 FPS) [AirsoftPro]](https://airsoftpro.cz/images/stories/virtuemart/product/airsoftpro-9mm-upgrade-spring-sniper-rifles-4.jpg)
9mm upgrade spring for sniper rifles -M170 (560 FPS) [AirsoftPro]![9mm upgrade spring for sniper rifles -M170 (560 FPS) [AirsoftPro]](https://airsoftpro.cz/images/stories/virtuemart/product/airsoftpro-sniper-m150s-spring-3.jpg)
9mm upgrade spring for sniper rifles -M170 (560 FPS) [AirsoftPro]![9mm upgrade spring for sniper rifles -M170 (560 FPS) [AirsoftPro]](/images/stories/virtuemart/product/airsoftpro-9mm-upgrade-spring-sniper-rifles-1.jpg)
9mm upgrade spring for sniper rifles -M170 (560 FPS) [AirsoftPro] ![9mm upgrade spring for sniper rifles -M170 (560 FPS) [AirsoftPro]](/images/stories/virtuemart/product/airsoftpro-9mm-upgrade-spring-sniper-rifles-2.jpg)
9mm upgrade spring for sniper rifles -M170 (560 FPS) [AirsoftPro] ![9mm upgrade spring for sniper rifles -M170 (560 FPS) [AirsoftPro]](/images/stories/virtuemart/product/airsoftpro-9mm-upgrade-spring-sniper-rifles-3.jpg)
9mm upgrade spring for sniper rifles -M170 (560 FPS) [AirsoftPro] ![9mm upgrade spring for sniper rifles -M170 (560 FPS) [AirsoftPro]](/images/stories/virtuemart/product/airsoftpro-9mm-upgrade-spring-sniper-rifles-4.jpg)
9mm upgrade spring for sniper rifles -M170 (560 FPS) [AirsoftPro] ![9mm upgrade spring for sniper rifles -M170 (560 FPS) [AirsoftPro]](/images/stories/virtuemart/product/airsoftpro-sniper-m150s-spring-3.jpg)
9mm upgrade spring for sniper rifles -M170 (560 FPS) [AirsoftPro] 9mm upgrade spring for sniper rifles -M170 (560 FPS)
New upgrade spring for bolt action sniper rifles. Made of steel spring wire, blackening surface, thermal tratment. Ends of the spring are grounded in. Older AirsoftPro springs where little bit "over scaled". These new springs better match to its nominal value.
Please note this is upgrade spring with the outer diameter 12,8mm and inner diameter 9mm. It is suitable for upgraded pistons which larger inner diameter !
AirsoftPro
AirsoftPro® has been in the airsoft business since 2007. The brand listens closely to customers’ needs and focuses on offering quality products at fair prices. Built on years of hands-on airsoft experience, AirsoftPro® spare and upgrade parts are well known across the European airsoft market.
Today, AirsoftPro offers more than 13,000 active products in its e-shop, with a strong focus on in-stock availability and fast dispatch. The store is among the most popular airsoft shops in the Czech Republic, backed by excellent customer feedback on www.heureka.cz. AirsoftPro also operates a representative showroom with a retail store in Pardubice, where customers can view selected products and get personal advice.