I would do just the same mod to an AT4K as I would do to a AT3K, here is a AT4K mod,
this one.
Or here is another AT3K mod,
Cxwq's mod,
The LaMarios mod.
I like to use hot glue because it dries fast. I should get my AT4K today so I'll tell you how I did the mod to it. I like to also us Cpvc for barrels, but I guess all I can get is Cpvc. I would suggest using petg. But I use Cpvc on all my guns and it works great for my guns.
------->>>>Moose<<<<--------
(edit) Ok I just got done modding it and I have awsome results!!! I used CPVC for barrells and this thing shoots like a dream!!! It's not as accurrate as my 3ks but its gonna be my main arm for a while.
Ima go range test it right now.
Ok, 4 pumps level, 64' 65' 65' 70' 72' 75' I'll be nice and give you the average

.68 1/2' average, not bad at all. THe wind kinda kept blowin the darts off to the right though so it prolly shoots a little farther.
Mods I did,
1. Plugged the release valve.
2. Gave it new barrels
I don't suggest trying this mod if you are just starting, the barrells don't seem to wanna come off.
Hey Cx, if I get the some pics of this mod to you would you post it on NH? I could right up how I did it and stuff.
Moose out!
Edited by moosenukem, 30 March 2004 - 04:49 PM.