K-80 Balance System
The stock screw system is installed in the stock bolt access hole under the recoil pad. Installation is simple and involves only removing the original stock bolt and replacing it with the new balance screw.
Please Note: Some stocks may have been shortened along with the stock bolt. To ensure you dont fit the new bolt and risk damaging your gun, please check the length of your existing bolt. The length of this bolt is 292mm.
Length of stock bolt from thread to mid piece is 168mm. This replacement bolt is designed to fit in place of existing stock bolts of 160mm in length.
The balance screw carries an adjustable weight that can be positioned anywhere on the top section of the balance screw. The screw itself weights 40gm and each pair of weights adds another 30gm. Two weights are possible so 100gm can be easily added to the stock.