This stubby vertical grip is Low-profile. Having a vertical forend grip gives you better control of your AK-47, AR-15, M4 carbine and tactical shotguns. The compact stubby vertical grip mounts to MIL-STD Picatinny accessory rails. Vertical foregrip is constructed of heavy duty polymer and light weight. Grip area is 3.5" over all length 4". One year Warranty.