Glock model 40 co witness sights - AmeriGlo Black Serrated, 407in Wide Front, 507in Notch, Flat Black Rear Sights

These are a �% co witness with the vortex venom. These are really tough sights to beat when looking for perfect Co witness, they do the job phenomenally. I had looked for Co witness sights and had no luck for true Co Witness until these, you won't be disappointed adding these to your Glock, well worth the money...