These magwells are machined from 6061-T6 aluminum and black anodized. They are manufactured in two halves, then blind pinned and welded together. They are not seamless monolithic blocks.
Note: Requires very slight stock inletting for use in polymer stocked rifles.
Will not work on .308 rifles.
Note: We have NO plans to manufacture magwells for other Mossberg models or calibers.