You might need this part! The CZ 457 rifle comes in many different variants from the factory, and in some cases, the bottom metal is permanently molded into the stock. When you buy a GRS stock, you might need this part to fit your rifle. Please check the overview below. The part is made from blued steel and fits the 22 and 17HMR magazines. Overview of the CZ457 models that need this part: Hunter Veil. Hunter Strata. Carbon. Ergo. (also needs trigger guard) MDT. (also needs trigger guard) Varmint Synthetic. Thumbhole. (also needs trigger guard) Synthetic. Stainless. Add to WishlistAlready In Wishlist Add to Wishlist