RockYourGlock Stainless Steel Guide Rod Assembly is a complete drop in unit. Special features include a solid one piece stainless steel guide rod precision CNC machined to accept a removable 3/32 Allen head tip. The ISMI recoil spring is manufactured of certified materials, heat treated for longer life, shot peened for stress relief and finally calibrated to Glock factory specifications. The spring includes a full 1 year replacement warranty that extends beyond just materials and workmanship. We even cover failure due to wear. The guide rod includes a lifetime warranty! These combined features make the RockYourGlock Guide Rod Assembly the most durable, longest lasting system available today. Experienced shooters realize plastic guide rods can chip, crack or break resulting in feeding or ejection failures and guide rod flex can contribute to accuracy problems. The RockYourGlock Guide Rod Assembly addresses all of these issues and will provide you a life time of reliable service. Select your model from the drop down above.