Matrix M115 170% Irregular Pitch Airsoft AEG Upgrade Spring (350~420 FPS)

$10.00 $8.00

Model: SPR-MTX-M115
Location: D7-037
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2 Customer Reviews

by Thomas S. on 05/13/2013
"Love the spring. It works as intended, and was much better than the stock spring in the P90 I made. I can't say what the rate of fire is due to me not having a chrono, however I will say it increased my FPS, and the stock spring was a compressed M120
by Jason B. on 08/29/2012
"Put this in my ICS M16A3 as an upgrade to the M100 that was stock. This was part of a complete upgrade that included a cylinder, piston, piston head, spring guide, air nozzle and this spring. Together that brought me from 305-310fps to 345-350fps with .25s. I am using a 9.6v 4200mah battery and it shoots the same rps of 16.6 before and after. Just remember the spring is irregular and needs to be installed with the closely coiled side on the spring guide. Definitely an upgrade over stock and the irregular spring reduces the load in the piston at first but still gives you an fps increase. Pair one of these with a full air seal upgrade and you will be very happy.

Matrix 170% / M115 Irregular Pitch Airsoft AEG Upgrade Spring (350~420 FPS)
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!

Features:
  • 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) ~430~520 F.P.S.
  • 260% (M140) ~450~550 F.P.S.
  • 300% (M150) ~500~600 F.P.S.

Evike.com 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.
Evike.com AEG Gearbox Guides

Review of Matrix Irregular 210% Airsoft AEG Springs.

This product was added to our catalog on Tuesday 04 August, 2009.

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