It wasn't a manufacturing unit challenge for that model. Possibly creative crafting of a regular stock. Pics would assistance to determine the appx year your rifle was created. 44 22LR, not for that 69A’s .22 S, L, & LR. I assume this intended that the chambering and rifling ended up https://highimpactrounds.com/product/winchester-sxp-extreme-defender-12-ga-18-in-gray-black-camo-furniture-perma-cote-finish-pistol-grip-stock/