Congrats! I've had one like yours for 24 years. Yes, the rubber grips were standard on the Field Grade back then. Mine has the adjustable rear sight and MNP dual trapezoids...works very well. FA is awesome. I have one in 475 Linebaugh, and I like it so much, I'm going to sell the 454 because I just don't shoot it anymore. The 454 is fantastic, the 475 is a sledgehammer. Cast LBTs from Beartooth Bullets shoot great, give them a look.
