“This is an example of a “try gun” which was used for sizing custom stocks to their eventual owners. This may be the try gun used by the factory to size clients for purchasing a custom Model 21. The buttstock has multiple inlets with screws that when turned allow for multiple adjustments to the stock. Some of these being length of pull, comb height, and drop at heel. The forearm is a standard checkered beavertail. 2 3/4 inch chambers and cylinder/modified chokes. The included FN America Certificate of Provenance identifies the shotgun by model and serial number, stating that it was previously a part of the Winchester Factory Collection where it was maintained by U.S. Repeating Arms.”