6mmProShop Custom Outer Barrel for Elite Force / UMAREX GLOCK 17 Airsoft Gas Blowback Pistols
(Type: Type A / Silver)

"I ordered the “titanium nitride” finish... it’s just cheap gold paint. The finish, after maybe 5 magazines is starting to be ground off from the action of the slide: I installed it in the new Umarex Glock 18c, so maybe the 2 g17 magazines of full auto is too much for it to handle... The barrel looks cool, and definitely makes the muzzle look better, I would buy it again, but even $100 is a rip off for what you get.

Pros:
It also fits the G18c
Looks really good

Cons:
EXPENSIVE!
Cheap paint, NOT titanium nitride
Does not include an inner barrel (probably should at that price, IMO)
No directions (even though it’s easy) on how to install the inner barrel.