If you hate the thin arms and wonky elbow cuts that look worse than a Mafex figure on your Dash you're in luck! For bare arms if you're into that new look the GI Joe classified Tomax is the exact same skin tone. You'll need to create a ball on the end of the peg either by melting the end of the peg into like a little mushroom cap or adding some super glue around it.

If you want to recreate the sleeved look from the vintage toy then the Black series Miggs at Ollie's that comes with all the guns is a plug and play option without modding the shoulder (just needs paint). With any arms you choose you will have to cut some of the forearms off and glue the cuffs on. The articulation is contained in the wrists by themselves so don't worry about gluing the cuff straight to the arm just make sure it lines up well.