I recently bought a 26 inch 20 gauge field 21 with beavertail and single selective trigger with LOP 14 3/4 from trigger extension to a factory buttplate. The serial number is 110xx. The gun weighs 6 lbs. 11 oz. and is a pleasure to shoot. This gun is in 95-98% original condition. Is this unusual for a field 21? This is my first 21 and I know little about them. I have ordered a Cody letter. Any insight would be appreciated.