Originally Posted by TTAC
To change this part takes about 5 mins. Very easy to do. Totally reverisble.
If you don't like it, send it back and Mr. graham will give you a full refund plus shipping.
One question I do have that Mr. Graham might be able to answer is, If you change barrels does this lock have to be changed as it wears in to the original barrel?
I would say no. I have a G35 and shoot a KKM 357 sig barrel and my stock 40 cal barrel and never have any problems.