Our new Tunnel Vision suppressor height sights were created in collaboration with Angry Bear Arms. The grooved rear sight is designed specifically to channel your vision in order to acquire the front sight faster. Both front and rear are serrated to reduce reflectivity and blacked out to not distract when using with a red dot optic. The thin profile of the rear sight won't interfere with optic cuts in either forward or rear positions. These sights are machined from high grade steel and are nitride coated for superior durability.