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) "Installed this and a tight barrel, gun shoots so much harder. Haven't had a chance to Chrono yet.
For anyone wondering, yes this does fit the Matrix/Double Eagle M40A3. Very easy modification. "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. Read More Reviews Write a Review
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