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Madbull M120 AEG Spring
[02458 / MB SP120]
$15.52
Displaying 1 to 5 (of 5 reviews) Result Pages:  1 
by D. JENSEN verified buyer Date Added: Monday 03 March, 2014
verified buyer
For: Madbull M120 AEG Spring
Product Information:
Good spring. Installs fairly easily in my VFC M4. Brought my FPS up from about 365 to a perfect 400. I expect it to drop about 10fps as the spring breaks in but I'm about 1000bb's in and it's staying a consistent 395-400

Pros:
-Perfect speed for a field gun
-Works well in a Ver. 2 Gearbox

Cons:
-A bit expensive for a twisted piece of wire
- 400fps out of the box, probably means it will drop a bit before it settles down
by D. JENSEN verified buyer Date Added: Sunday 27 October, 2013
verified buyer
For: Madbull M120 AEG Spring
Product Information:
-Great spring, bought it for a VFC M4 that was shooting about 360 stock. The spring pushed the FPS to a perfect 400, was not expecting it to be so close to the mark.

Pros:
-Good price
-Perfect FPS increase


Cons:
-Slight loss of ROF, but that's kind of expected
by J. SINCLAIR verified buyer Date Added: Sunday 05 May, 2013
verified buyer
For: Madbull M120 AEG Spring
Product Information:
This madbull m120 spring is powerful, I was recieved consistent fps around 450-465 with my kwa km4 ris. I have a madbull 6.03 509 mm barrel, systema cylinder and cylinder head. bravo toughness piston and the bravo thrust piston head to aid the fps. Still even got consitently between 23-25 bps.

Pros:
Hard spring and looks cool
Consistent fps
Great spring for custom AEG's

Cons:
None.
Can be tough to install if your not strong enough to compress the spring and put it in the gearbox.
by M. SPRING verified buyer Date Added: Sunday 05 September, 2010
verified buyer
For: Madbull M120 AEG Spring
Product Information:
Great spring, I've put it through about 100k rounds and its still very consistent and in one piece.

Pros:
Strong
High quality
powerful
consistent

Cons:
none
by S. MCKENZIE verified buyer Date Added: Sunday 29 June, 2008
verified buyer
For: Madbull M120 AEG Spring
I use this in my ak47. If u want a cheap and quality spring then buy this one my fps went up about 405fps from it being 350fps. Only problem is plastic gears might need upgraded to metal so the teeth dont break and the piston should definately be upgraded to polycarbo or metal. The cheapest and best quality piston to get is the --ECHO 1 Polycarbonate Piston-- only $15. This piston works for M130 and down nothing higher.
Displaying 1 to 5 (of 5 reviews) Result Pages:  1 
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