Beavertail

[′be·vər‚tāl]

Beavertail pistol grip: the grip style used on the Colt 1911 handgun. A large piece of curved metal at the top of the grip which protects the user's hand from getting bitten by the hammer. It is nearly always the top part of the grip safety commonly found on many 1911-style pistols.

Beavertail on a 1911 style pistol
Beavertail on a 1911 style pistol