08-29-2011, 04:08 PM
Do you mean the PSG-1 style grip with a hand shelf? Those were designed for hostage scenario sniper teams where the snipers are usually first on the objective area to provide surveillance and reconnaissance, with duration often extending into days. The shooter can stay relatively on-target with his rifle, while relaxing his hand on the shelf. If you will be spending a lot of time laying on the gun, they're great. It might also keep your firing hand more relaxed when shooting normally, and you will need to muscle the stock with your non-firing hand into a good solid position.