Guarder Oil Temper Wire AEG Upgrade Spring

Guarder springs are one of the most consistent and durable springs on the market. This means that the springs will provide predictable FPS numbers and maintain their strength through its life cycle. 

NOTE: These springs are SP rated and are not to be compared to typical M rated springs. Example: SP110 =/= M110. 

Spring Using Japan NIPPON STEEL SG WIRE CO., LTD.
Oil Quenched/Tempered Si-Cr Alloy Steel Wire
For All AEG Series, except TOKYO MARUI PSG-1 AEG

Weight : 14 g
Material : Steel
Color : Black