[MaybeStopCalling]

Alright, I've spent some time installing RS parts on my C8/M4/AR-15, and I have a couple of notes:

Colt Delta Ring Assembly:
- The finish of the RS Delta Ring is much better than WE's.
- A RS Delta Ring is just slightly smaller than the WE Delta Ring. Where there was some play between the two CAR handguards on my C8, the new delta ring reduces this to nil. There is no side to side wobble on my plastic handguards, at all.
- However, the diameter of the WE barrel nut is slightly larger than the cutout for it in the RS Delta Ring, meaning the barrel nut can't fit through. I had to slightly grind out the inside of the RS Delta Ring to allow the barrel nut to pass through.

DPMS Dust Cover:
- Dust cover fits the cutout perfectly, and the hard coat finish is much better than WE's powdercoating.
- When closed, the retention pin fits solidly, and the door opens smoothly when the bolt moves rearwards.
- Unfortunately, the retention pin's body (The casing holding the spring and etc) is larger on the RS, resulting in a door that won't close if the bolt is forward. This can be remedied by sanding down the recessed area of the bolt carrier where the casing sits by a millimeter.