The original Ergo Grip developed by Steve Hines was the first truly ergonomic shooter focused grip for AR platform rifles. Designed for performance by creating a better interface between the shooter and firearm the Ergo Grip is still the standard by which positive grip and shooter comfort are measured. The Ergo Grip comes with the patented Gapper™ for increased comfort. – Fits AR-15 type firearms in .223 and .308 – Ergonomically correct finger grooves – Integrated rear upper extension supports the web of your hand – Superior Rhino Hide™ texture improves weapon control – Virtually impervious to oils and solvents – Over molded SUREGRIP™ material with original texture. – Comes with The Gapper™