ID: 62516 (SPR-ST-M40A3-500)
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Exempt From Coupons Features: Upgrades muzzle velocity to 500+ FPS High quality spring steel Direct drop-in part Velocity:
495 to 525 FPS
For S&T M40A3 series Airsoft sniper rifles
S&T is a group of Airsoft enthusiasts that produces rifles and parts based on the trends in the Airsoft industry. Their mission is to supply a wide range of quality products with the most competitive pricing for dealers and consumers alike. S&T was founded in 2009 with their HQ office located in Hong Kong, a subsidiary office in Japan, as well as Airsoft / Airgun manufacturing facilities in China.
(Write a review) "Works great! Just installed it in my M40a3 sportline, and the install only took about 5 minutes. Was shooting around 510 with .20 bbs, but might drop a little bit as the spring settles with time. Also, I recommend a minimum of .32 gram bbs. If you can hop heavier, then the better. "This spring is longer than the stock spring, but it works all the same. I put this in my ASG M40A3 Sportline. "Little longer than the stock spring, but went from barely getting .4g out to 240ft to launching .46g bbs out to the same distance without much trouble. Haven't had a chance to chrono yet, but seems like it will be around the 500fps range. Write a Review
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