Bud's offers free shipping on all gun orders. They also offer free shipping on selected other items that are marked "SMG Ships Free." They also offer free FEDEX shipping for orders over $200 when purchasing select items. Other than that (which is a lot) I don't know of any "special' shipping deals.

Free shipping on combine purchase of $199.00 on specially marked items (lower 48 states)

Only the current deals. All firearms ship free. Certain accessories and items qualify for free FedEx shipping with orders of $200 or more.

The only shipping deals that I have seen are the ones for Free FedEx option and that is for items over $199 I believe. I usually see a coupon for $5 off if I buy a firearm but I've not seen or heard of anything. I know the Price match option helps sometimes to assist with shipping if you find an eligible item cheaper somewhere else.