Description Air Arms Diabolo Express .177 (4.52mm) Pellets. When only the best will do, choose Air Arms pellets. Consistency and accuracy are the key to successful shooting and the Air Arms Diablo Express delivers both in abundance. Stringent controls ensure that the pellets are produced to the highest standards, giving you confidence with that all important shot. .177 – 4.52mm 7.87grains (0.510g)
