
Receiver set pinned together at the front as it arrived. Grip and upper accessories came separate, only thing assembled was the charging handle

Lining up the grip, left side view

Right side view with the grip

Accessory bag contents, unfortunately the takedown pins are a bit weird (and uncoated, thus rusting) so I might use my own for this build.

Retro Arms gearbox fits well, rear takedown and trigger pin holes both line up. That's a first although I've only done heavy modifications to G&G receivers in the past so that's probably why

Charging handle is a bit tight with this gearbox, I might have to swap it out with a spare Krytac one I have laying around. It interferes with something on the top of the gearbox shell and cannot pull smoothly.
I think the best thing to do is to build a DSG and tune it in another receiver to avoid damaging this one for as long as possible. I just got in an A&K receiver so perhaps I'll save a build for that one until after this SLR is built.
I'm liking the SLR B15 SBR/pistol build on their website: https://slrriflework...s-set-cerakote/ I think I'll work on making it look like this. The SLR gallery shows that they prefer using Magpul grips so maybe I won't use this kit grip with the build. We shall see