The CCM Clamping Feedneck is absolutely the best clamping feedneck on the market today. CCM was the inventor of the first successful full production clamping feedneck. When other companies started to knock-off the original design CCM switched to the Helical Grip slots for an even better preforming feedneck. CCM products carry a LifeTime Workmanship Warranty. This warranty applies only to the original purchaser and is NON-TRANSFERABLE. This warranty does not apply to items that have been abused, misused, modified or repaired.