This is a super rare Mauser 1916 Fleuger carbine 20 rd magazine fed rifle in 8mm . There where only 1000 of these guns ever made !! Made for Ballon and Zepplin airmen to defend themselves from Biplanes and groundfire . This type of shoulder firepower for a infantryman during this time was unheard off . It is beleived there are less than 10 of these in the USA and one sold at auction for $60,000.00 price for this highly collectable piece of history is $38,500.00 Please drop us a line !!