Black Eagle Arrows PS25 Nock Bushing G/M Nock 12 pack 1006001. Crafted from 7076-T6 aluminum alloy one of the strongest available these bushings are manufactured to the tightest tolerances to ensure perfect alignment and compatibility with PS25 shafts. With three weight options?Standard G/M and Pin?archers can fine-tune their setup for optimal performance and precision. Specifications for Black Eagle Arrows PS25 Nock Bushing: Manufacturer: Black Eagle Arrows Color: Silver Features of Black Eagle Arrows PS25 Nock Bushing: Made from durable 7076-T6 aluminum alloy Engineered to fit PS25 shafts precisely Manufactured to the tightest tolerances for consistent performance Standard Nock Bushing: 16 grains/G/M Nock Bushing: 17 grains/Pin Bushing: 15 grains Includes 12 bushings per pack Package Contents: Black Eagle Arrows PS25 Nock Bushing