Action Army Steel Power-Up Spring for Airsoft AEGs (Tension Options) SSR90 Holds tight to magazine to

Holds tight to magazine to keep secure

Plates will not crack or break when handled roughly

Accepting SR25 AEG magazines

Available in black

Action Army Steel Power-Up Spring for Airsoft AEGs (Tension Options) SSR90 Holds tight to magazine toSteel construction Non linear spring design Easy to install part to increase your stock FPS Compatible with Tokyo Marui, Matrix and other compatible Airsoft Gearboxes 110% (M85) ~270~310 F. P. S. 120% (M90) ~280~340 F. P. S. 130% (M95) ~290~370 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