The side button is a Streamlight Sidewinder Helmet Mount, for a flashlight. While the helmet uses a multicam cover and matching mount, the chinstrap and pads are an older UCP model. There were tons of these left over when the army switched camo, so they kept getting issued. I have seen paracord loops in the rear used to hold the helmet band in place many times, likely these ones purpose. 

The chinstraps are not USN. 

Thanks for your input Gear.   I read somewhere about the riveted chinstrap but don’t recall its origin.

Welcome aboard.   I have a small collection of jump wings.

. Google Translation    I found this ZIPPO lighter a few years ago at a garage sale. It's a 1942 model, not a 42/43 model. It has a 4-section hinge and the insert weld is welded on the left. The chimney has 7 holes on each side. There's no markings on the insert. There's a Corps of Engineers collar badge and another US collar badge on the other side. I have a few ZIPPO lighters, but this one is by far my favorite.   regards lewis

J’ ai trouvé ce briquet ZIPPO  il y a quelques années sur un vide grenier , C’est un modèle de 1942 et non pas d’un modèle 42/43  , charnière 4 sections , la soudure de l ‘insert est soudée à gauche , cheminée 7 trous de chaque côté, aucune inscription sur l ‘insert , un insigne de col du Corps des ingénieurs et un autre insigne de col US de l’autre côté. j’ai quelques briquets ZIPPO mais celui-ci est de loin mon préféré 

New to my collection today.  These three relics found in Luxembourg. Consisting of 2 laundry bags and an M43 combat jacket from Company I of the 319th Infantry Regiment of the 80th Infantry Division. Both soldiers were captured near Heiderscheid on December 24, 1944 and survived the war. Do any of you perhaps know more about these soldiers? I would like to know if these soldiers ever visited Belgium?

Very nice jacket, love that it still has an old gum wrapper in the pocket !

Thanks again for the info and I'll check out the dealers you mentioned, always good to get dealer recommendations

Hello,   I recently saw in a collection (unfortunately I don’t have photos, but I could take some if I go back) a USMC one-piece camo uniform with USMC buttons. Like those found on the sleeves of P44 jackets or trousers.     Have you ever seen this type of variant?   I’ve always heard that these one-piece uniforms were Army issue, with star buttons, and not specific to the USMC with USMC-marked buttons.   Thank you very munch for your help !