Designed to reduce the trigger pull to approximately 1.5 lbs. The mating surface is precision surface ground. Includes lighter trigger spring. Fits, .22 LR, .22 WMR and .17 HMR

77/22 .22LR Features a roll-over cheekpiece and curved teardrop grip with a wide forend.

77/22 and 77/17 .22 WMR Features a roll-over cheekpiece and curved teardrop grip with a wide forend.