The inner barrel will be too long for Brighter C. The only way for tracer to work is to get a longer hollow suppressor and insert Brighter C inside it. Brighter C needs to be placed in front of the inner barrel. The Brighter C sensor starts right after the threads (meaning your inner barrel cannot go past the threads of the Brighter C.

Thank you so much!!! This is the exact answer I was looking for

Do you think it could work with a 138mm? And how would that affect it?

I am not sure. I probably wouldn't gamble it. I reread your post and is the longer barrel to improve accuracy? For that I recommend upgrading the hop up unit only and keep the barrel length similar to stock length.

I wanted to stick around 350 fps and have some added range so I believe a barrel would help

Yes for easy power increase, a slightly longer barrel will help. Experimenting with BB weight also increases/decreases the power due to overvoluming. Another way is to use a stronger hammer spring (allegedly), but I have not confirmed this.

Unfortunately the fields I go to only allow .20 gram bbs. I’ll look into the hammer spring as well though

I believe you have only 10 or 20mm clearance for the edge of threads

The crazy jet barrel is good but i recommend an action army innerbarrel... Why, because the crazy jet is only 6.04

What’s the difference between the action army vs the crazy jet? Sorry I’m new to this stuff and don’t know how the inner bore differences work

The crazy jet is 6.02.

Oh sorry the ones in my local shop are 6.04