Guarder SP160 Spring for AEG
[R15D03][01685 / SP160]New to airsoft? Here are some safety tips for airsoft guns that we recommend following.
Upgrade your AEG's fps to 520 to 550fps. It is highly recommended to seek professional assistance when purchasing/installing spring. If you are thinking about ordering this item call Airsoft GI for guidance.
- Specifications
- Manufacturer: Guarder
- Color: Black
- Material: Metal
- Package Includes: One (1) Spring
After installing this spring and:
- Guarder aluminum piston head w/ bearing
- CA polycarb piston
- CA super torque-up gears
- CA anti-reversal latch
- JBU 6.03x550mm inner barrel
- King Arms one piece metal hop up unit
- Systema hop-up bucking
* Echo 1 black H-type hopup spacer
Into an otherwise stock A&K SR-25, the rifle was chrono'd at 400-405fps w/ .40g Madbull BB. Mathematically, that equates to about 565fps w/ .2g. This was with a near-ideal air seal.
For comparison, with the same gearbox/rifle setup and a Guarder SP140 spring, the rifle chronographed at 500fps with a .2g BB.
Pros:
- Very high velocity (over 550fps with the right air seal)
- Very little deformation after 1,000 rounds and six months in a gearbox (swapped for an SP140 for velocity regulations)
Cons:
- Makes gearbox disassembly/reassembly difficult, if not dangerous. Use a bolt or an M4 T6/LE stock retention screw (threaded into the spring guide) to make those processes easier.