Inner barrel assistance

[Ryan Smith]

I currently am running a G&P cqbr zombie killer. I am not well versed when it comes to upgrades.

I am not concerned with ROF as i don't spray and i prefer shoot low/mid caps.

first thing i would like to do is change out the barrel for a tight bore. I plan on putting a suppressor on so i can install a longer inner. Any suggestions for a compatible combo? I don't want to shoot in the dark and end up with parts i cant use and have to return.

Next order of business is a spring upgrade. The gun currently shoots around 380fps with .2's. I don't plan on being involved in any indoor play in the near future. I would like to get it in the 400-420fps range. Again, not sure of the proper way to do this. I'm assuming if the gun is shooting harder the internal parts will wear faster. Should i be upgrading other items in the mech-box?

I'm doing some orders from airsoftdepot and ehobby this week so any insight would be great.

Thanks,
Ryan

[George Burdell]

A tight bore barrel will increase the FPS to some degree, and a longer barrel will drastically increase your fps. If you increase the FPS with a barrel length increase, then it will not affect the longevity of the gun.

[Styrak]

An inner barrel length increase will not "drastically" increase your FPS. Maybe by about 10 or 20.

If you put a longer inner barrel in, you might want to put a full cylinder in (non-ported, M4's have ported cylinders). Look in the Doctor's Corner section for a spring chart that Illusion made to guide your choice in springs.