You can find dedicated rifle boxes from several industrial and specialty packaging suppliers:

: Recommended by enthusiasts for padded, heavy-duty cardboard shipping boxes that can often be reused.

For shipping rifles, you should look for with a high burst strength (typically 200# or ECT-32 ) to ensure they don't crush or tear during transit. Most specialized boxes use Full Overlap (FOL) flaps , where the outer flaps completely cover each other, providing extra edge protection and stacking strength. Top Retailers for Rifle Shipping Boxes

: Carries standard 14" x 4" x 52" rifle boxes in bundles of 15.

: Sells heavy-duty FOL side-loading boxes in various sizes, such as 8" x 4" x 52" and 14" x 4" x 52". They are typically sold in bundles of 15.

: Offers specialized foam-lined boxes designed specifically for AR-15s and other long guns. They also sell "do-it-yourself" custom-fit kits that include rust-preventative film.