Good barrel overall, very nice looking, lightweight, boosts accuracy and range and a bit of FPS. Before, my Echo 1 G36K achieved 12 inch groups at 75 feet. Now it's more like 4 inches. Pretty sweet I'd say. This is the first and best upgrade you will ever get for your AEG.
NOTE OF CAUTION: If you're going for THIS barrel, use it on an M4 or longer barreled airsoft gun ONLY unless you know how to remove the orange flash hider on your G36K (which I do not condone for legal purposes) because the G36K's barrel length is actually 355mm, NOT 363mm! Yes that extra 8mm makes a huge difference.
-Improves range (about 20-30 feet or so)
-Improves FPS (about 10-15)
-Durable (aircraft grade aluminum)
-Nice looking black finish
-Meant to be easiest for M4's
-The indents for the c-clip are kinda small, had a hard time fitting it into a G36 hop up chamber but no biggie
Rating: [4 of 5 Stars!]