||I bought this as an upgrade for my AUG, and this is an UPGRADE!!! i tested from 50 feet using Matrix .23g bbs, with 5-10 MPH winds, stock bucking, semi and then burst. 10 consecutive shots with the stock brass barrel i achieved a grouping with a 5inch radius. With the Modify SS+AL i achieved a 3.5 inch radius on the new grouping, then on full auto the spread was more contained with the aluminum barrel versus the brass
comes with bucking,
has 3 rings to match bucking(that bucking will not move whatsoever)
super light weight
o rings included
the bulge where the aluminum and stainless steel meet prevented my metal hop up unit from sliding on to the barrel, but worked perfectly with my stock plastic one, so be weary!!!
be careful with the o-rings, don't force it down the gun because you may rip them like i did, my outer barrel was too tight to fit the barrel + o-ring
BE CAREFUL when installing, being naive, my metal hop up unit wouldn't slide on, so i forced it and slightly bent the barrel, being aluminum it bends the easiest when compared to brass and steel, i still got great performance!!!!
overall its worth the money, i believe the steel absorbs the vibration of the gearbox, but the aluminum makes it nice and light, so that's why its called a HYBRID, yes i would gladly recommend this barrel, but i'm afraid of the compatibility issues with certain hop up units and their tolerances,
i cant speak for the fps increase because i dont have a chrono
Rating: [5 of 5 Stars!]