There has been many Hop up units to claim that they are the best hop up unit to date, but Modify’s new hop up unit may actually fit that bill. The Modify Hop-up unit features a one piece, metal unit which is perfectly cast and does not display any seam lines, burrs or any other casting defects. Next we move onto the actual hop up adjustment gears, Modify constructed their gears with metal sleeve inserts which are secured with O-rings to ensure little to no lateral movement. Modify redesigned the hop up arm to be wider then most and features gearing inside to allow for finer tuning and to ensure that the arm does not move and being properly set. The unit comes with two hop up arms as well, the other arm differs by the hop up nub being built into the arm which is advantageous because the nub cannot shift, move, flex or change shape which provides more consistent results. Simply put, the Modify M4/M16 1-Piece Metal Hop Up will provide the user with extremely consistent hop up and might just be the best hop up on the market.
Model: 1-Piece Metal Hop Up
One piece metal construction
High quality adjustment gears
Redesigned hop up arms
2014-05-25 16:17:57 S. WASHBURN verified buyer
For: Modify M4/M16 1-Piece Metal Hop Up
These hopups are amazing. I use these and ProWins in all of my M4s. Never let me down once, never had problems with mine. Love it. Best side-wheel M4 hopup on the market IMO.
-Good quality materials.
-Good seal with bucking
-Stays on the barrel and has no wiggle or wobble
-Comes with two arms, normal arm and nub arm
-Doesn't lose its hop or arm position after shooting for a while
-Hop up arm and nub stay in place due to a better arm design over standard hopups
-Better than the MadBull hop up by far!
-Best side-wheel style M4 hopup on the market IMO
-Had to make the rails on the sides of the unit a little skinnier to fit my VFC. But it'll fit others without modification. So no worrys, I don't mind it anyway.
2013-12-24 19:15:06 K. PEREZ verified buyer
For: Modify M4/M16 1-Piece Metal Hop Up
I have used this in my Classic Army M4 in about five or six games and I have to say I am thoroughly impressed with this unit's performance. The hop up stays dialed in and does not come lloosefrom the vibrations of the gun. Very high quality material and I don't think I will have to buy another unit for a very long time.
High quality metal
High quality gears
New technology from Modify
Very stable when set right
Can be a little tricky with some types of buckings. Not a huge problem though.
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