Jerry & Lena-Mossberg 940 JM Pro Setup
This guide details how to adjust the stock of a Mossberg 940 JM Pro shotgun for optimal fit, a critical step for accurate shooting. Expert instructors Lena and Jerry Miculek demonstrate the process of modifying drop, cast, and length of pull using included adjustment kits. Proper shotgun fit ensures the shooter's eye aligns correctly with the sights, making the firearm an extension of their will.









