Zaffiri Precision Stainless Steel Slides were designed with tight tolerances to increase accuracy and performance. There are two different optic configurations, as well as and variety of coatings for a customized look. These are among the best aftermarket slides available for for Glock. This ported slide is designed to be used with our matching ported barrel, however it can also be used with any oem or threaded length barrel. This ported slide is designed to be used with our matching ported barrel, however it can also be used with any oem or threaded length barrel. Fits for Glock 43 and 43X frame. Also compatible with Polymer80 PF9ss Machined from 17-4 Stainless Steel All slides are pre-cut and cerakoted to order. Does not include channel liner (Not required on 43 / 43X / 48) Optics Cut: Our Shield RMSc, Holosun 407k/507k, and Sig RomeoZero optic cuts are all the same footprint with NO rear lugs and slightly lowered front lugs. This makes the same footprint compatible with all 3 companies. Optic Cover Plate is included! The screws are all slightly different for optic mounting. Optic mounting position in front of the factory location of the rear iron sight. Screws are 6-32 thread. Blue Loctite recommended for proper sight retention. DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by for Glock. for Glock does not warrant or represent that this product is compatible with for Glock pistols.