The main spring hanger bar that extends out under the barrel from the Ruger #1 receiver can be turned into a harmonic accuracy tuner with the installation of our Hicks #1 Accurizer. The resulting improvement in accuracy can be dramatic (see below). Installation is easy with only minor inletting of the forend required to give clearance for the Hicks #1 Accurizer. Once installed, you shoot 3 shot groups and adjust tension until you reach optimum accuracy. Please Click Here for Photo Illustrated Instruction PDF. Installation is easy with only minor inletting of the forend required to give clearance for the Hicks #1 Accurizer. Once installed, you shoot 3 shot groups and adjust tension until you reach optimum accuracy.