An exact copy of a MK223 OR MK-229 bomb tail fuse, standard in WW2 Navy GP bombs.
The body is solid CNC machined aluminum and the vanes are laser cut aluminum.
This replica nose fuze is free rotating. Its designated use is for Navy bombs 500 lb - 1000 lb GP bombs.

Fun Facts
Functioning. . . . . . 0.01 delay
Fuses used with. . . .AN-MK 219 or MK-221
Arming time. . . . . .150 vane revolutions
Vane span. . . . . . .5.25” (16 vanes unpainted)
Max body diameter. .3.25”
Overall length. . . . .16.36”
Operation: When the arming wire is withdrawn, the arming vanes and the vane shaft rotate. The lower end of the vane shaft engages the cap, which rotates and revolves the pinion around the inner gears, operation the reduction gearing. The alignment of the firing pin extension, delay carrier ( firing pin carrier in AN-m 219), and detonator is similar to that of the AN-K 219.