Tactical Link makes hands down my favorite clamp on Bolt Catch/Release Lever. Theirs is called the EBAL which stands for Enhanced Battery Assist Lever and utilizes not one mounting screw but 3 to make it rock solid. I have purchased and installed these on more than a few of my rifles. My most recent build to use these is on my AR Pistol (pictured below). Just a few months ago Tactical Link added Magpul FDE and Magpul Foliage as color options for the EBAL. Today they announced that they will be adding Magpul OD Green, Prison Pink and Zombie Green. As if that wasn’t cool enough, Tactical Link also reduced the price on the EBAL from $29.95 down to $26.95. Purchase your own at TacticalLink.com You won’t regret it!