There is little doubt that a vertical foregrip for the AR-15 and M-16 has become a valued tactical accessory in military, law enforcement and civilian arenas. A vertical foregrip provides the operator with several important advantages, from diminishing muzzle climb during burst-fire sequences to simply offering a more comfortable shooting stance.We are pleased to announce that through joint kinematics manufacturing we are now able to offer the GG&G Vertical Foregrip at a greatly reduced price while still maintaining the quality. The GG&G Vertical Foregrip for AR15 and M16 rifles has always provided more than the standard vertical grips. It is made of the highest quality materials and features and a core with a waterproof compartment to store batteries and other small items. The newly redesigned GG&G Vertical Foregrip is another step up-offering three great additional features at a greatly reduced price. Not only does this vertical forend grip offer a very stable vertical grip, but the new waterproof compartment will now accommodate an AR15/M16 spare bolt. The interior of the "O" ring sealed waterproof compartment has been re-configured to securely hold the bolt in place - NO RATTLES HERE.Another new feature of this forward grip is that you no longer need a tool or coin to gain access to the waterproof compartment. The waterproof compartment cap has been re-designed with an ergonomic-no snag tri-grip feature. The third new feature is the addition of an alignment window to aid in the installation process. Without the spare bolt stored, the waterproof compartment is large enough to securely hold two AA batteries and or two CR123 batteries. Three N type batteries, firing pins, ejectors, extractors or other small replacement parts for your weapon system can be stored in the compartment but the user needs to pack additional material, so as to eliminate rattling. Unlike other forward hand grips in the marketplace which are molded or injected plastic, all parts of the GG&G Vertical Foregrip are CNC machined from solid black Acetal cold polymer for durability and low heat absorption. No special tools are needed for installation or adjustment in the field. This rugged vertical foregrip is 4.5" in length, 1.250" in diameter and only weighs 2.4 ounces. A separate "O" ring seals the threaded core from the combat environment. Every vertical hand grip (or "battle grip") from GG&G is made in the USA at our Tucson factory and guaranteed to work in some of the world's toughest environments and situations.