What's included:
-Glock OEM 49 MOS Complete Slide
-OEM Barrel
-OEM Recoil Spring Assembly
-OEM Extractor
-OEM Firing Pin Safety
-OEM Depressor Plunger Assembly
-OEM Firing Pin Assembly
-OEM Rear Slide Plate
-Channel Liner
-OEM Sights
-MOS Adapter Plate #2
Frame Compatibility: 
Glock 19 Gen 5 / Glock 49 / Glock 45 / Glock 47 / Glock 19X