Lone Wolf Dist. Guide Rod Assembly For Glock - M20, M21, M40 & M41 Lone Wolf Generation 4 Stainless Solid stainless steel guide rod. Precision CNC machined to accept a removable Allen head tip, for easy spring changes. Springs are made from 17-7 stainless steel and are calibrated to factory weights. Mfg: Lone Wolf Dist. more |