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Madbull Airsoft Ultimate Hopup Unit for M4/M16 Series Airsoft AEG
[Hopup-MB-Ultimate]
$38.00
by Steven M. Date Added: Wednesday 16 January, 2013
Finally a review from my usage of it....This hop up unit is Amazing. Seals very tightly against the gearbox and the wheel Does Not Move!

Only con i can think of was that the blue bucking that Comes with it is a Very tight fit in the unit.....I'd use something else unless you want to use brute force to get your barrel out lol

Pros:
No need to readjust wheel
Tight seal against gearbox

Cons:
Bucking it comes with is almost too tight of a fit

Rating: 4 of 5 Stars! [4 of 5 Stars!]
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