Tier One 5.7 mm and Spartan Screw-In Brass Insert Weights
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These screw-in brass weights fit Tier One 5.7 mm and Spartan inserts. These weights are for fine adjustments. We have screw-in weights available in 30, 50, and 75 grains, and they are stackable for those looking to maximize F.O.C. *** If installing from the nock end, you need to purchase Rampage/Renegade brass insert weights.
Loctite Purple or Blue recommended

