Savage Arms 45125: The 64 is a workhorse rimfire popular with plinkers and target shooters, and now the 64 is built with Precision Series upgrades. The new Model 64 Precision houses a semi-automatic action in a synthetic chassis with M-LOK slots and an ergonomic pistol grip. Its heavy barrel has a threaded muzzle for even greater functionality. Extend the range of rimfire with the 64 Precision and see what\'s possible with Savage accuracy. AR Compatible Pistol Grip.