For those of you running a vertical fore grip, Bobro offers a unique take on the device. It attaches via a system called the SACL (Self Aligning Compression Lock). Basically you align the grip at a 45 degree offset from the portion of the rail where you want to attach the grip. Loosen the compression lock a couple of turns, slide it into place and twist. Then you tighten the compression lock to keep it in place. A major advantage to this style of attachment is that you can attach it anywhere along the rail without having to remove any accessories already in place.
The SACL portion is machined from a polymer (Delrin). The fasteners and index pin are phosphated to Mil Spec STD 171. While the grip was not designed for the waterproof storage, items can be stowed inside the central core. Additionally, it is not rail sensitive, meaning it can be installed on any rail built to Mil-Std 1913.
The Bobro grip is available in two lengths; standard and shorty. Available from SKD Tactical at under MSRP.