Shadow Systems makes it simple for you to do a complete overhaul on your existing Glock or easily complete your 80% build. The Shadow Systems Glock 19 and Glock 17 Complete Upper Assembly includes slide, barrel, all small parts, and (optionally) sights.
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Simply drop the assembly onto your frame and you are off to the range. Our Glock upper kits can be purchased with the same options as our pistols, including your choice of slide milling and finish, barrel machining and coating, sights, etc. This is the simplest option for completing an 80% build or a complete Glock upgrade and overhaul. Purchase one of our Glock 19 Complete Upper Assemblies today!