Ergo 4965BK Never Quit Magwell Grip Compatible w/ AR-15/M4 Magazines Black Polymer

The Ergo Never Quit Magwell Grip reconfigures the squared shape of the AR/M4 magazine well into an ergonomic and comfortable grip option. It gives AR/M4 receivers a distinctive aesthetic upgrade. It is easy to install and is made of Oil and solvent resistant polymer construction. Your AR must have mil-spec trigger guard for installation. NOTE: Cannot be mounted to lowers with permanent trigger guard