1) Grip 2) Handgrip 3) Handle 4) Hold 5) Stock 6) Support 
• (n.) The stock or wood to which the barrel of a hand gun is fastened.
Gun'stock` noun The stock or wood to which the barrel of a hand gun is fastened. 
noun the handle of a handgun or the butt end of a rifle or shotgun or part of the support of a machine gun or artillery gun; `the rifle had been fitted with a special stock`
the stock or support in which the barrel of a shoulder weapon is fixed.