Angel Custom CNC Steel Ball Bearing Spring Guide w/ 130% and M120 Springs for Spring Powered Tri-Shot Airsoft Shotguns

"I can tell a noticeable FPS increase.

That being said, it for sure harder to pump as a result. Not over the top, probably too much for younger players.

"nice drop in..but if you already have a spring set you will need to cut off the ball bearing spacer and top washer

"Update: I decided to give the AC springs another chance... Well, at least the larger diameter spring of the 2. Now My Cyma M870 is shooting 307-315fps!

M870 oem = 270fps

with AC spring guide oem springs = 290fps

with AC spring guide small oem spring Large AC spring = 315fps

(AC steel trigger parts also installed with all testing)

As it stands now I give this set 4.5 stars.

"Mixed feelings about this. The spring guide is made very well and I'd recommend buying this for that alone. The springs however were wayyyyyy too powerful and require a hulk like amount of force to pump. I ended up using just the inner spring with my stock CYMA outer spring and even that is pretty brutal. The package claims that they are 130% upgrade springs but they feel like alot more than that. Your mileage may vary of course. Overall though its a great deal for even just the stainless spring guide and I'm glad to finally see upgrade parts for trishots.

"The spring guide is beautiful..HOWEVER-it's diameter is slightly to large and the pins that hold the two lower piston arms drag slighty.

I decided not to install the springs.. because they drag on each other hard, and they also drag on the oem springs, doesn't matter the combo used- they aren't the right size, my own testing has shown that issues like that lead to worse performance.

BUT, I'm going to try each spring individually.. to see if one of the AC springs is better than the two oem springs.