SLY Dual Carbon Barrel Back Set - Black - Autococker threads to fit
Cyborgs, Cockers, DM's, Egos, PM's and other cocker threaded markers

barrel backs come in combo-packs of 4. bore sizes .683" .686", .689", .692". diamond cut cnc premium grade aluminum hardened to T6.
Black Color to match your SLY DUAL-CARBON front.