Recently a freind of mine just got back from kassos greece and libya from from a spearfishing competition .they where giving away free demka spearguns to promote these spearguns. my freind brought three of them back with him from greece. 45 cm 90 and a 110. particularily i like the 110 demka because of the open muzzle and the clear view of the whole shaft. double 16 mm bands and the shaft thickness im not sure about. the bans and muzzle are simillare to riffe guns. i am thinking of getting one of these guns but the quality of the guns seams a bit infirior . if anyone has any information about these guns i would love to here from you. ill atach some pics of the gun.by the way my frinds blaced 11 in greece kassos and 4th and 5th in libya.