Glock is only listing one that I could find, the 19X.
LINK A lot are cerakoted FDE by distributors as "special editions". I couldn't tell you about DJ's gun...
The options for cerakote are endless...
The pic is snipped from the GlockStore.
I
AM thinking of building an 80% "glock" G19 starting with a FDE frame. They also come molded in many colors such as grey, light blue, pink, white and so on. Some have even dyed white frames to a chosen color using RIT fabric dyes. The slides come OEM black or aftermarket in many colors and treatments including bronze. Midway USA, Brownells, etc. have many build "kits" which include everything to construct a gun except magazines. The FDE frame pic is from MASDefense but frames are offered by many distributors.
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PS: 80% kits are not yet "guns" according to the ATF. They are NOT serial numbered as they are not yet a gun and not subject to GCA 1968. They ship via normal methods directly to your door (here in the US). Many weinie jurisdictions (such as CA) require they be serial numbered and registered once completed.
PPS: A G30 sits in a small push button safe near my desk with an extra G21 mag and a G26 (with pinkie extension mag) in my soft briefcase in my car along with an extra ETS 31 mag.