Nice! You showed me on AIM what it looked like with the stock, but it looks pretty damn cool with the pistol grip. Push forward with the hand on the pump and pull back with the hand on the grip. It cuts the muzzle flip down. And rest your elbow on your chest with your elbow bent. Most pistol grip guns (mainly pistols... xP) are better shot with your arm straight, but try holding a shotgun with two hands and keep your right arm straight. It's not easy and very awkward to try and aim with.
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