Zaffiri Precision aftermarket Complete Upper for Glock 43 and 43X includes slide, barrel, internal parts, and sights. Single billet 17-4 stainless steel slides are made with tight tolerances increasing accuracy and performance. 100% American made and manufactured at Zaffiri Precision's facility. These are among the best aftermarket slides available for Glock. Complete Glock 43 and 43X Upper Includes: ZP ZPS.2 G43 and G43X Slide - Black ZP ZP.43BBN G43 and G43X Flush & Crown Barrel - Black Nitride G43/G43X Upper Parts Kit HD Fiber Sights Optics Cut: Zaffiri Precision's Shield RMSc, Holosun 407k/507k, and Sig RomeoZero optic cuts are Mfg: Zaffiri Precision