All experienced shooters know that proper torque on action screws are essential for consistent accuracy. GY6 has developed a quality, affordable, aircraft grade aluminum bottom metal for the Howa Mini. Cracked polymer is a worry of the past with GY6 replacement bottom metal for the Howa Mini Action. This drop-in bottom metal is a direct replacement for factory polymer, and is compatible with the factory-supplied Howa Mini Action magazine. Mfg: Gy6 Precision Llc