Great product. Guide rod spring was so stiff my normal medium reload target ammo would stove pipe. No problem with full house defense ammo. The allen wrench that comes with the kit could have a larger handle than 1/8 inch diameter. I drilled out a shaker peg and tapped the handle into it for better control and not to be lost so easy.
Pros: Easy to install verry accurate
Cons: Guide spring almost twice as strong as original
This review was written in the old system and had content requirements that are different than reviews written today.