Aber A32011 Set of 4 German barrel tips for 13mm MG.131 aircraft machine gun. 13mm MG.131 Fitted to Messerschmitt Bf-109, Me-410 Hornisse, Focke-Wulf Fw-190, Ju 88, Junkers Ju-388, Heinkel He-177 Greif bomber variants, and many other aircraft. (designed t