ARB website link...
As you can see in the link they allegedly have a
locker option for the Colorado... however when you click on it there is nothing for sale there. lol
OME (Old Man Emu) suspensions are also available for sale there at the ARB site! They come in a plethora of configurations for tuning. You can keep the stock height, Level the suspension, OR add a mild lift. Tuned for... or without an aftermarket front bumper.
arbusa.com
Here are my favorite 3 bumpers so far for the Z71... I like the first two due to their keeping the OEM look. All three seem to keep approach angles decent.
1. MidWest Industries...
Chevy Colorado winch bumper and skid plate protection
midwestoverlandindustries.com
2. GoFab
The GoFab Chevy Colorado Off Road Winch Bumper is designed to maintain a factory look while enhancing the performance and capabilities of your truck. This stout bumper uses 3/16" steel with 1/4" reinforcements. It houses a 20" Single Row LED light bar, 2 recovery points and a Winch. (fits most...
coloradocanyonenthusiasts.com
3. Relentless Fabrication... sticks out further. However, adds some great approach angles in front of the tires. Kind of like the ZR2 bumper. (Which would also aid in adding larger tires)
UPDATE: This bumper has been discontinued. Check out our Z71 (non-Zr2) hybrid bumper instead! Our Defender series front bumper for the 2015-2020 generation Z71/ LT Colorado features: 3/16" Steel Construction 1.75" x .120 wall DOM tubing for top Defender hoop 3/4" Through welded steel recovery...
www.relentlessfabrication.com
And... here is a VID of a guy who bought the bare metal bumper from Midwest Industries.