Time to take your pick and make that pre-order at WGC Shop on the custom slide sets being produced by Guns Modify for the WE Airsoft and Tokyo Marui Glock 17 Gas Blowback Pistols. You can choose among the following: SAI Slides in Black/Silver, SAI RMR Slide in Black/Gold, SAI RMR Slide in Black Silver, SAI RMR Slide in FDE/Gold, and SAI RMR Slide in FDE/Silver. Prices range from US$152.00 to the US$272.00.