g4 internal upgrades .

well i want to have my g4 be almost as acurate and as fast as a kwa m16 . i have a m130 so im set fopr a spring but ya

didn't ya say it was a blow back

ya

hmmm..... wouldn't it be the combat machine blow back m4?

ya G&G

blowbacks are a ltitle ibt more harder to upgrade guns...
unless you have internal experience (in the first place, with removing gearbox, opening it, and such,) you could open it up.
But if you have NO experience, the blowback will make it harder...

What he said.
You could put a metal hop up, and (if your willing to take off the flash hider you ordered with it,)
an extended 6.03 m4 plus inner barrel with a barrel extention to cover it.

The max length of your barrel should be the same number you average on the chrono. You don't want to install a 500 mm barrel on a 400 fps gun. If you buy a 450 mm barrel then cut it to the right lentgh, just be sure you are using a legit rotary pipe cutter. Basically its a tool that grips onto pipe or barrels and has two or one metal disk. You spin it around until the disk have cut through the barrel/pipe. Just when using it, don't adjust the disk to be tight, you want it to spin with only a little resistance, then adjust as you cut. It would give a cleaner cut and less work on the re-crowning.

*sorry very offtopic, but in the safety of not making ANOTHER topic, I had to go offtopic... but...*
@LoneWolf

My gun shoots about 300-320 FPS with a .23. Its a 1:1 scale M4. I was wondering why the length of the inner barrel has to be the same as the FPS?

It should shoot about... 370 FPS with a .20, and the M4 plus barrel I planned on getting was a 407mm barrel. What would happen if my FPS is lower then the barrel length?

You would get more drag on the bb. Minimizing range and FPS. OH NOEZZ

It doesn't have to be the exact length as the FPS but in the "ball park" Its okay to be a little longer or a little short by 20 mm's but I wouldn't go anymore longer. If you want it to look longer, and have space to add a longer one when you do any upgrades, just get a silencer or extended outer barrel.

so if the length is 407, would the FPS at 380 or so do good?

wait so is there a tbb that i wouldnt need to cut like what size should i get

http://www.airsoftgi.com/product_info.php?cPath=31_55&products_id=1233

This one?

Yes that should work fine for your needs.


I just prefer stainless, but those barrels are more expensive. I also have had good luck with the madbull barrels though. They are light and not as hard to install. Just be sure you have the right spacer in the hop up or your going to have a little wobble. But it is not much.