Grey Ghost Precision Stripped Slide, Sig P320 Compact, Version 2 Slide Pattern, Compatible w/ ROMEO1 / ROMEO1PRO / Trijicon RMR / Leupold DeltaPoint Pro, Includes G10 Cover Plate When Not Running An Optic, Compatible w/ SIG P320 Full Size, X-Five, Compact, Carry, and X-Carry Modules, X-Five Barrels Are Not Compatible w/ GGP320 Slides Due to It's Profile, Not Compatible w/ Vortex or Aimpoint Optics, DLC Coating, Black GGP-320C-BLK-2 Just like the GGP17/19 and SPG43 slides" these GGP320C slides offers enhanced aesthetic features" increased grip serrations and an improved coating without compromising function. We also took our hybrid MRDS optic cut and added a third option" the SIG ROMEO1. Now you have to option to use a ROMEO1 as well as a Trijicon RMR or Leupold DeltaPoint Pro right out of the box without using bulky adapter plates that only raise the optic further above the bore axis.