You will love your M-21. I have an Inverness in my safe, and a buddy has a M-21 similar to yours. They feel nearly identicle when you shoulder them. I've shoulder P guns, and they are nice, but I much prefer the fit of the Inverness/M-21. My go to meat gun is a Beretta 686 White Onyx, and I can tell you that as much as I love my 686; it feels like a tank compared to the Inverness. The Inverness is styled after the RA Best quality guns built by McKay Brown such sell for about $50k+!