Was looking into buying a "Heat Shield" to install on my 590 Shockwave and well come to find out, after speaking with the tech over at Mossberg, I was told that Mossberg did not/does not make a heat shield specifically for the 590 Shockwave and only for that model!? No wonder when shopping around online for a Heat Shield for my 590 Shockwave just about every site gives in their description about it....specifically states that the Heat Shield is, quote....."NOT COMPATIBLE WITH THE 590 SHOCKWAVE". Strange but...if you look at the parts breakdown in the manual offered on your 590 Shockwave (if you don't have your manual look at the Mossberg website and download it from there) it specifically shows a picture and parts stating that there is a Heat Shield and accessory parts for it?...reference Parts 31-33 on Pages 30 & 31 respectively. But again, those parts could be for only the 590 and not the 590 Shockwave? I guess if I really wanted one for my 590 Shockwave I would need to look into possibly having one customized/made? Anyone here has a 590 Shockwave with a Heat Shield installed? If so could you explain exactly in detail what you did or went about having one installed on it? Where did you acquire it from?...online store?...etc. Also please post pictures of it if possible? Thanks in advance to all who post on this thread!