Contact Us (626) 286-0360 Walk-In Superstore Daily Deal
New Phone Support Hours M-F 8am-5pm PST
Browse by Type or Category
GET YOUR SPRING ON! - 25% OFF (exclusions apply, see details)   Use code: SPRING

Matrix M125 210% Irregular Pitch Airsoft AEG Upgrade Spring (400~470 FPS)

ID: 31458 (SPR-MTX-M125)
4.6 stars, based on 7 reviews
Matrix M125 210% Irregular Pitch Airsoft AEG Upgrade Spring (400~470 FPS)
Hover or touch above to zoom


These Matrix springs are build after careful study of major Japanese spring sets providing all the features you'll look for in an AEG spring for maximum performance. It is made out of high quality anodized piano wire, with tension carefully measured. Systema's irregular pitch, Prometheus's Stainless steel material and PDI's durability are all features duplicated and found in a Matrix spring. Test shown that this spring will last you longer, is more durable and will out perform!

  • Irregular Pitch Spring Coils: Variable Tension. Reduces stress, wear and tear for your Gearbox.
  • Strength: Made out of Stainless Steel. Increased tension and durability. Tension lasts 50% longer than other leading brands.
  • Compatibility: Designed for all version Airsoft AEG gearboxes.

Matrix Spring Power Chart. (% / FPS)
FPS estimate based on average power output. Exact FPS result may vary based on alignment, installation, inner barrel, cylinder and other factors.
  • 120% (M90) ~280~340 F.P.S.
  • 130% (M95) ~290~350 F.P.S.
  • 140% (M100) ~320~380 F.P.S.
  • 150% (M110) ~330~390 F.P.S.
  • 160% (M113) ~340~400F.P.S.
  • 170% (M115) ~350~420 F.P.S.
  • 190% (M120) ~360~450 F.P.S.
  • 210% (M125) ~400~470 F.P.S.
  • 235% (M130) ~420~500 F.P.S.
  • 260% (M140) ~450~550 F.P.S.
  • 300% (M150) ~480~600 F.P.S.
  • M160 : ~530+ 20 F.P.S.
  • M170 : ~560+ 20 F.P.S.
  • M180 : ~595+ 20 F.P.S.
  • M190 : ~625 + 20 F.P.S. Airsoft AEG Tip:
Always reset your spring by firing one shot in semi-automatic before putting it away.
M120 / 190% or stronger spring upgrade may require reinforcement of other gear box internal parts.
9.6V or Stronger battery may be required to power higher than stock springs.

For more info on your Airsoft AEG gearbox please refer to our video guides. AEG Gearbox Guides

Review of Matrix Irregular 210% Airsoft AEG Springs.

7 Customer Reviews

(Write a review)

by Thomas A. on 03/09/2015
"I have bought 2 of these and love them. I have one in my Elite Force CQB and one in my G&G Combat Machine. They both work very well. my E.F. gets about 445FPS and my G&G gets about 440FPS with 0.20g BB's. with 0.25g BB's I am just under 400FPS with both of them. Legal with the fields that I play at. I shot 0.28g BB's out of them which puts me at 375-380FPS with them.
Now I just have to but me a motor that what get hot and stop working during a game. Mine works ok as long as I just use single shot but, when you use full auto and it stops with the piston on the last tooth, it mine does not have enough torque to start back up from there. Have to take the gun apart and reset it every time.
by Ryan G. on 01/17/2013
"Just added this to my CYMA CM028U AK to bump it up a little for outdoors. Spring was a beast to put in compared to the stock spring. And I had to upgrade to the 9.6V battery as stated. The stock battery wouldn't even turn it over! Other wise I have been out a few times with it, full auto and semi without any other issues. Stock motor and all other stock parts + internals.
I don't think I would go any higher though without another motor. This seems to be a good size to get a bit more bang out of your gun without breaking everything.
by Jesse S. on 12/11/2012
"I bought the m125 spring and dropped it into my MK43 (stock except for teflon tape on the bucking and modified nub). After 5,000 bbs it was clocked at 2.1 joules - that's 475 FPS with .20s, 425 with .25s.

Careful because this thing does what it says and then some!

Questions, Answers and Comments

Discuss about Matrix M125 210% Irregular Pitch Airsoft AEG Upgrade Spring (400~470 FPS) with your friends and fellow shoppers!

Comment or answer questions for a chance to win awesome prizes. Details can be found on the Facebook page. Remember to check "Also post on Facebook" to qualify for the giveaways!

Have an urgent question about this item? We monitor these comments daily, but it may be faster to email us directly or call us at (626) 286-0360. Our resident experts are standing by to answer your questions!