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Mad Bull M120 Spring

Airsoft ShortyUSA (c)

$ 15.99

Regular Price: $ 19.99
You save: $ 4.00 (20%)
Shipping: $ 0.25
  

Average of 4.87 reviewed by 15 people
This item has 15 customer reviews
   
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Made out of premium quality German piano wire the Mad Bull upgrade springs are rated to have consistent power for up to 100,000 shots! Each spring is treated with a protective hard coating which is color coded to the springs power. This spring will work with any AEG that is compatible with Marui upgrade parts.

Velocity can vary depending on the guns barrel length, compression and overall condition. The M120 spring produces on average 380-410 fps using a .2g BB.

Mad Bull M120 Spring - Quantity:






C U S T O M E R   R E V I E W S


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Reviewer: jeffer
Rank: GEN
Location: wellington, FL
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16 out of 26 people rated the following review helpful:

5 out of 5- ...yes

....i put this for fun in a echo1 m4..i did it fast..dang bb flies like nobody's buisness..but- i paid a lot more than today's price of 12 bucks....installed over a month ago..shoots like crazy..i paid about nothing for the used m4..i will report..as the fun continues..i made a label "mad bull equipt" for the flat side of the barrel..again this is a panic sport even with the slight barrel wobble ..my fault..from ..just learning to air-smith...10Q..jeffer


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Reviewer: another_headshot
Rank: COL
Location: vancouver, WA
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9 out of 10 people rated the following review helpful:

5 out of 5- Great Upgrade

This spring is a great upgrade for AEGs anywhere from JG guns to TM. The power gained easily makes up for the lost RPM, and is only $16! Buy it, you won't be sorry.

Note: Cheaper AEGs will wear out quicker with this spring as the gears aren't strong enough.


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Reviewer: joesjeans
Rank: MG
Location: lancaster, PA
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8 out of 11 people rated the following review helpful:

5 out of 5- Simply Spectacular

This is one of the greatest springs you can get for your gun. The incredible FPS more than makes up for the lost RPM. Just make sure your gun can take it - lower end MPEGs will get run down fast as the stock gears and motors can't take it. If you have an Echo1-grade or higher quality gun, you won't be sorry.

Pros:
Are you kidding? It's one big pro.
High Quality
Great Power
Long-Lasting
Dependable
Price (look at it; amazing)
German Made
Marui Compatable
Color Coded

Cons:
None.

Get this spring for more power! You won't believe how good your gun will shoot with this! It will be like getting an entirely new gun for $16!
BUY IT!


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Reviewer: 6mm shooter
Rank: MG
Location: plymouth, MN
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5 out of 17 people rated the following review helpful:

5 out of 5- AWESOME

this spring will bring your gun's average fps up to 370fps-420fps. that really good


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Reviewer: zxcv
Rank: MG
Location: lexington, SC
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3 out of 10 people rated the following review helpful:

5 out of 5- Made Out Of Premium Quality German Piano Wire

Mad Bull upgrade springs are rated to have consistent power for up to 100,000 shots!
Each spring is treated with a protective hard coating which is color coded to the springs power.

P.S. Velocity can vary depending on the gun's barrel length, compression and overall condition. The M120 spring produces on average 380-410 fps using a .2g BB.

The velocity does not go up and down like other m120 & s120 upgrade springs!!!(Chrono'd it)!


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Reviewer: bigred192
Rank: SGM
Location: Charlotte, NC
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3 out of 4 people rated the following review helpful:

5 out of 5- Great

I had never heard of this spring before but i read a review that suggested getting this along with my gun so i checked it out and it is amazing. i'm not too handy when it comes to upgrading my guns and fixing them but this wasn't hard at all and it's well worth it for 16 dollars you make everyone else fear you on the battlefield like jeffer said in his review this is a panic sport just tell people you upgraded your gun to a much higher FPS and suddenly everyone is afraid of your gun it's great!
5 stars must buy for anyone who wants a better gun.


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Reviewer: Wing8806
Rank: 1LT
Location: Wilmington, DE
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3 out of 3 people rated the following review helpful:

4 out of 5- 380-390 fps!!!

I recently popped one of these into my ECHO1 X36C and had it chronoed, just as stated in the description it helps gain 380 fps. I'm currently doing 380-390 with stock internals except for this and a steel spring guide (WHICH IS A MUST). don't expect to just stick this into your gun with a stock guide - it will break, and it's a pain as is without that happening. Oh and if you're an extreme airsofter and play more than 5 times a month, i suggest looking into a version 3 gearbox just in case. Otherwise, GREAT spring!


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Reviewer: TAC6456
Rank: MG
Location: Flemington, NJ
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2 out of 3 people rated the following review helpful:

5 out of 5- Amazing

This spring is the very best. I have one in my KWA KG36C and it really rips.


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Reviewer: robert cornacchia
Rank: MG
Location: newark, DE
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2 out of 2 people rated the following review helpful:

5 out of 5- INCREDIBLE

I decided to go with this spring because i like to shoot in full auto and i wanted power without tearing up the inside of my aeg's. Mission accomplished. This spring is awesome. The power increase is just punishing. If you want to boost the power of your aeg without spending over $150 bucks on a new gear set and motor, and the list goes on, then this is it. At only $15 bucks it's a no brainer, as long as you know how to take out your gear box and open it. From there it's real easy, just pull out the old spring and put in this new one. I strongly suggest getting this spring to anyone who wants to upgrade their aeg and still wants to shoot full auto without hurting your aeg, and not to mention it's a madbull, so you know you're getting quality stuff.


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Reviewer: Rebelious
Rank: BG
Location: Wilmington, DE
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1 out of 1 people rated the following review helpful:

5 out of 5- Dawn of the DEAD

I had all but given up hope on my first real airsoft gun. My Classic Army MP-5 was as near death as any I have seen. Anemic is what I had said about her. It was shooting about 210fps and accuracy was poor at best. So I figured it could not get worse. I bought this spring and put it in.
I got me a NEW GUN!! I am hitting soda cans at 150ft., and punching through both sides of the can at 10ft. It's like having a new gun. This 16 dollar outlay saved me big time.

PRO: Great Price
Color Coded
Accuracy

CON: Not For The NON-Mechanically Inclined

Conclusion: If you know your way around an all metal gear box, and you want serious performance, BUY THIS SPRING.


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(Listed above are the first 10 rated most helpful reviews for this item)

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