Kenneth, not on accessories but, only on Layaway marked firearms listings Sir. Example layaway eligible listing here : budsgunshop.com/product_info.php/products_id/52078/ruger+ec9s+9mm+312+black+7%2b1

Layaway is available for many but not all firearms on Bud's. Look to the right of the page when viewing the firearm your interested in, if layaway is available it will say "layaway available" with a green check mark.
If "layaway available" is not listed there, then layaway is not available for that item.
Also, some popular items only offer layaway for Team Bud's members, and will say "layaway TB only".