Ultimate Airsoft AEG Spring by ASG (Version: Yellow / M115/ 375 FPS)

"It's a spring. I does exactly what it's supposed to. Therefor, 5-stars.

"M125 is shooting 350 fps with .3's. Just what I was looking for.

"got the m95 for indoor plinking, runs about 280fps with .28g out of my modded piston/stock hopup 303mm scarl

"Used multiple of these springs M95 and M125 for various guns! Performs very well and consistent FPS with 5 to 7 FPS marginal increase/decreases! Highly recommended!

"I've used over twenty of the M115, M125, and m135 springs in various replica types, and after thousands of bbs on each of the springs as well as accidentally storing guns with precock on for several weeks at a time, have noticed virtually no FPS loss. I use several guns that have had these springs in them for 2-3 years, and the springs are still shooting at the advertised FPS. These springs also shoot at the advertised FPS with a decent air seal.

Something I really like which isn't a pro or a con performance-wise is that these springs don't have that boingy noise after you shoot like some brands of springs do.

The only issue I have with these springs is that they're really long, which can be annoying when you're trying to close a gearbox that doesn't have a quick change spring. However, that's a minor issue when compared to the reliability of these springs.

"Perfect spring to get if you want your stock CZ Evo to be under 350 FPS with a 7.4 Lipo

"These springs are excellent quality . I experienced minimal fps loss after a initial break in. The m95 is getting me a consistent 340-345 fps in 2 guns .

"I bought the ASG M135 spring. This thing works great in my Krytac Mk2 gearbox shell. I am using it in my Krytac SPR DMR build in tandem with an R-Hopped Prommy 6.03, and the Lonex mushroom cylinder set (M4 version). With perfect airseal this spring put my gun right at 450 which is exactly what I wanted.

"For anyone who is curious I use this spring on my Krytac Vector. The stock m120 spring with an 11.1v lipo will likely overspin the gearbox, causing the 2 rd. burst to fire 3 shots, etc. The modest upgrade to a m125 spring will be just a little stiffer and make it work as intended. Fortunately this spring did the trick and I also noticed a nice increase in range. Did not chrono the gun yet, but the performance is visible.

"Perfect spring got my scorpion evo shooting at 340 fps

"Got the M135. Runs about 380~390FPS in my E&L Ak74u with .25s

"Good spring but be aware this spring is on the longer side. I have a asg 135 and that spring is shorter.

"Wish I could agree with everyone's glowing review but I MAY have gotten a spring that was incorrectly color coded. I got 1.3 joules with the Yellow M115 spring- exactly what they claim and conversion charts for BB weight confirmed. I wanted a little more energy so I put in the Orange M125, which should give me 1.55 Joules according to their claimed joule rating. Instead it jumped to 1.85 joules. Not joule creep either on this particular build, and believe me, this is a methodical build with a barrel length and matched cylinder very close to ASG's testing standard. Over 1/2 a joule increase with one jump in spring rate? Doesn't seem right. Also, I'll be impressed when an airsoft spring manufacturer finally starts listing their springs by joule rating instead of FPS. FPS changes with BB weight, but joules remains the same.

"too long to fit in a V3 gearbox, at least for me. however it is made of good and solid material. the coloring of the end of the spring also makes it easier to identify as a mechanic, which i am not. i'd rate this at 3.5 stars.