[BigDak]

I just bought a Krytac Alpha CRB. It shoots about 300 fps rn and I want it to shoot about 350 but not over 400. What should I do to bring that fps up without breaking the bank?

 

[Guges Mk3]

If it has a QD mechbox. Drop in a "Good" M100(330)/150%(340)/SP90(330) spring.

 

[BigDak]

If it has a QD mechbox. Drop in a "Good" M100(330)/150%(340)/SP90(330) spring.

Whats a QD mechbox. Im sorta new to airsoft and the techy terms

 

[Guges Mk3]

Quick Detach - Where the spring guide comes off the back mechbox without doing a major tear down to allow you to change the spring (after you set the piston forward by firing in SA mode).

The Alpha (discontinued) CRB does have this feature...

https://krytac.com/product/alpha-crb/

Scroll down onto the mechbox section to see this feature.

 

[BigDak]

Quick Detach - Where the spring guide comes off the back mechbox without doing a major tear down to allow you to change the spring (after you set the piston forward by firing in SA mode).

The Alpha (discontinued) CRB does have this feature...

https://krytac.com/product/alpha-crb/

Scroll down onto the mechbox section to see this feature.

 

[BigDak]

A larger spring shouldn't burn out my motor should it? I dont wanna break something

 

[Guges Mk3]

Directly a spring does not burn out a motor. Plus the increase is minimal, going from a 300FPS spring to a 350FPS spring.

High voltage batteries and a really heavy spring affect motor life more drastically, but it doesn't technically "burn it out" in a short period of time and use.

 

[BigDak]

Directly a spring does not burn out a motor. Plus the increase is minimal, going from a 300FPS spring to a 350FPS spring.

High voltage batteries and a really heavy spring affect motor life more drastically, but it doesn't technically "burn it out" in a short period of time and use.

So what kind of spring do you suggest? M100? M120?

 

[Guges Mk3]

See post #2 ^