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Rock Slide USA Upper for Glock 17 Gen3 9mm RS1FS9 RMR Black

Rock Slide USA Pistol Stripped Upper 9mm, Gen3. Compatible with Glock 17/22/31 Lowers. Black Cerakote finish. RMR Cut for Trijicon optic. Takes standard Glock 17 internal parts, sights, and barrels.