I have a 602ZKK 375H&H, but no peep on it. It is Jon Speeds last rifle he used in Africa while working there. The original stock fits me perfectly and I have no problem getting on the Irons or scope. Barrel has been shortened to 21" and has a barrel sling swivel. Bolt handle has been straightened ,I hate that little crook in the factory handle. Front sight is a Masterpiece ramp with fluorescent sight. It is adjustable for elevation as I wanted to keep the factory rear when I shortened the barrel. Stock has been completely glassed from rear tang to end of forearm.