Night Fision Optic Plate + Backup Sight Combo Features The Night Fision Optic Plate + Backup Sight Combo is machined from 17-4 stainless steel to the tightest tolerances giving it the strength to withstand harsh recoil without shifting zero on the mounted optic. Its nitride coating adds a further layer of corrosion resistance and wear protection so the plate holds up under the kind of hard use a duty or competition pistol sees over years of carry. Because the plate is built specifically for the Aimpoint ACRO footprint it provides a precise secure mounting surface rather than a generic fit that can introduce play between the optic and the slide. Every package includes extra mounting screws and an installation tool so the plate can be fitted and re-fitted without hunting for separate hardware. Paired with the plate are Night Fision s premium black sights set to co-witness with the mounted red dot so the shooter always has a mechanical backup sighting reference. These sights are designed to co-witness with most optics sharing the ACRO footprint giving the combo broad usefulness beyond a single optic model. The combo fits full size Glock MOS models including the 17 19 45 and 47 though it excludes Slimline models due to their narrower slide profile. This black Optic Plate and Backup Sight Combo is for sale at GrabAGun for Glock MOS owners running an Aimpoint ACRO who want a durable mounting plate and a dependable set of backup sights in one purchase. Night Fision Optic Plate + Backup Sight Combo Specifications Manufacturer: Night Fision Model: Optic Plate + Backup Sight Combo Type: Sight / Optic Plate Compatible Hosts: Glock 17/19/45/47 MOS Color: Black Material: 17-4 Stainless Steel Finish: Nitride Includes: Extra Screws Installation Tool Available At: GrabAGun