How much benefit from extending barrel?

[gmaximus]

I'm considering getting an MP5K-PDW, putting a longer inner barrel on it, and then putting on a silencer to conceal the longer barrel. The barrell will be extended by a few inches; probably about as long as a regular MP5 barrel, I'm guessing.

Will this be worth the trouble? Improving the accuracy and power would be nice, but not if the improvement is negligible.

Thanks

[Ninj4]

gah...hmm..i know it would help..but not by much. I mean, a stock MP5 can shoot just as about as far as a stock M4....and then again..this is just head knowledge..i've never really tested this before. I dont THINK it would make THAT much of a difference..unless it was a tightbore..then it might be different..I dunno...you might want to wait till someone that does to post and find out for sure :p

[ArmyHummer]

Heres a quick rundown of the variables and if it adds range and power or doesnt.
Longer= Adds
Tightbore= Adds
Higher FPS= Adds

Really, thats the only 3 things you can do. YOu can upgrade internals and help add to it, but if you dont, then your best off getting a tightbore of some longer barrel. A longer STOCK barrel will help, but not as much as a tightbore would.

Thing is, when you come to reality, on a stock gun with longer barrel, unless its like a psg-1 barrel, you probably wont notice much of a difference.

[M4A1gunner]

Hold on i have heard of everything else, but what is a "Titebore"

[Nitrous]

A tightbore is a barrel, usually made of Titanium (TN) but sometimes Brass (BS), that has a smaller diameter than a stock barrel. They usually have a diameter of 6.03mm or 6.04mm, versus the stock AEGs' barrel of 6.08mm. This traps a little bit more air behind the BB which "supposedly" helps it reach a higher velocity, as well as keeping the BB on a more stable flight path.

The only problems with the tightbore barrels is that they have a lower tolerance of damaged or low-grade BBs.

Hope that helps.

[M4A1gunner]

OK... Thanks

[stargate6]

TM barrels = 6.12mm~6.15mm
CA barrels = 6.08mm
Systema = 6.04mm
KN = 6.04mm
Prometheus = 6.03mm

BBs are usually ~5.98mm. So having a tightbore leaves little room for dirt and other foreign objects, which could cause jams.

Good article on tightbore barrels:
http://www.airsoftgear.com/techtalk.htm#Tight%20Bore%20Barrel

A tightbore barrel usually works best when combined with a spring upgrade. Putting a tightbore barrel on a stock gun won't do all that much than if you were to put it on a 350-400fps gun.

[gmaximus]

OK, I think that about answers the question for me. The thing is I dont want to use a larger (external) battery, because I don't like the way it looks. So I was hoping to squeeze out some extra power from the longer barrel. I'll probably just leave it stock, it's for CQB anyway. :)