This is a video guide for the TM AEP USP series electric pistol. Its a take down guide and reassembly and also how to fit the new eagle6 AEP upgrade spring, which will increase the stock fps from 220 fps to between 270 – 300 fps.
Part 1
Part 2
Part 3
Part 4
Part 5
#1 by golgo13 on January 9, 2010 - 11:23
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Nice, does the upgraded spring reduce the ROF or trigger response? I suppose so, but, how much?
Thanks
#2 by Richard on January 10, 2010 - 21:13
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hi, it does a bit, im runing the lipo on mine so i dont notice it, there are those that have done the upgrade on a standard battery, they said it slowed it down a bit, but they weighed up the fps increase vs the cost £10 and found it a worthy venture
, its also a fickle little beasty when it comes to the tightness of the casing, if you over tighten the screws, especially if youve fit the nineball bearings it can slow down the rof, theres no way to know if those that fit the spring did that or not. obvisouly that would make harder work for the little 7.2 bat
theres a rof vid on the eagle 6 you tube channel
#3 by Michael on December 13, 2010 - 01:07
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Does the eagle6 spring wear out the gearbox quicker, or does it not have an effect on the durability if the gun? Also, I removed the cylinder of the USP and I noticed there is a little slot on it. Which way does this slot face? Thank you for any help!
#4 by Richard on December 22, 2010 - 11:01
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nope doesnt wear it out, but you will notice a slow trigger response if you dont switch to the aep lipos.
#5 by Michael King on March 16, 2011 - 02:42
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I installed the Eagle6 spring but my fps dropped from 230 before upgrade to 210 afterward. Any idea what happened?
#6 by Richard on March 16, 2011 - 23:58
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Yeah the spring youve fitted now has the potential to produce a higher FPS but aeps have bad airseals at the best of times. If its a cyma versions its even harder to get good airseals. please visit this link where we discuse getting a glock 18 cyma up to 280 fps, theres pictures and a discusion on what me and ray did to get both our usp and glock up to 280 fps.
Some upgrades which may help you out.
PDI 8 hole AEP piston head
Pdi 6.01 barrel
Ry hop mod for aeps
Nineball full cylinder
Eagle6 upgrade spring.
I recently installed that lot on a tm usp and got 295
#7 by Richard on March 16, 2011 - 23:59
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forgot link
http://www.airsoftforum.com/board/lofiversion/index.php/t187568.html
#8 by Michael King on May 9, 2011 - 04:59
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Alright, it turns out the o-ring attaching the cylinder to the nozzle was broken, I fixed that up but haven’t gotten the chance to fire it yet. I noticed that if i fire rapidly on semi auto for around 60 rounds or so the motor over heats and wont work until it cools down again. Any tricks to avoid this? Also, how much does the full cylinder and tb barrel boost fps? Thanks!