Description 50910 Wolff GUIDE ROD set for GLOCK 29 30 36 Wolff recoil spring guide rods for Glock pistols are the ideal companion for Wolff recoil springs. Guide rods are solid steel, hardened to a minimum of RC-55 and now have a jet black finish that won’t wear off and provides corrosion protection.  Wolff guide rods provide optimum performance for Wolff recoil springs through better support and spring alignment. Permits you to keep factory recoil assembly intact. Order guide rods alone or in combination with a recoil spring of your choice.    Note: Wolff recoil guide rods are non-captive thus allowing easy recoil spring changes.   Note: Not for use in Generation 4 pistols.