Looks good, except for the channel liner. get an oem channel liner if you buy this kit. - Shadow Systems Slide Completion Kit for Glock Pistols

Bought 2 of these kits. Haven't used them yet but most of the parts look fine, except for the channel liner. Both of the channel liners I received in my kits were literally useless. They aren't cylindrical. One of them is hourglass shaped and the other is the opposite (bows outward). Looks like they were made with a tree mold because there are 2 "bumps" on opposite sides of the center of the cylinder that look like where they were snapped off a tree. They either need to improve how they're making the channel liner or just buy OEM Glock ones and include them in the kit. Wasn't expecting to have to order separate channel liners to finish my project because the ones included in the kit are not usable.