Black Widow Assassin

Hammer Black Widow Assassin bowling ball

NBT Solid Coverstock

Gas Mask Asymmetric Core

16 lb 15 lb 14 lb 13 lb 12 lb
RG 2.51 2.5 2.5 2.589 2.612
Diff 0.048 0.058 0.056 0.043 0.043
Length 44% 38% 38% 93% 108%
Flare 73% 96% 91% 62% 62%



  • Factory Finish:
    500/500/500/1000 Abralon with Powerhouse Factory Finish Polish

From Hammer:

It’s the return of a Legend.

Black Widows are the most popular series of bowling balls ever produced by Hammer, and now they’re back to bite medium to heavy oil lane conditions.

Black Widow Assassin pairs up two of our most popular components ever - the Widow core and the First Blood coverstock. Sanded in a 1000 grit polished finish, the Black Widow Assassin is one of the most aggressive and continuous hooking balls in the market today.

Combine that signature Widow core motion with today’s coverstocks, and you’ve got one of the TOUGHEST rolling products in the marketplace!