Weight
              15 pounds
           
PBA Approval Date
              Release Date
              Discontinued
      
            
      
            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!
Factory Finish
              500/500/500/1000 Abralon, Powerhouse Factory Finish Polish
          NBT Solid Coverstock
Type
              Solid Reactive
          Gas Mask Core
 
The Gas Mask core is the most iconic weight block in bowling. It is known for its large flare potential, versatility amongst bowling styles and its backend bite.
Core Type
              Asymmetric
          16 pounds
RG
              2.510
          Diff
              0.048
          MB Diff
              0.015
          15 pounds
RG
              2.500
          Diff
              0.058
          MB Diff
              0.016
          14 pounds
RG
              2.500
          Diff
              0.056
          MB Diff
              0.016
          13 pounds
RG
              2.589
          Diff
              0.043
          MB Diff
              0.011
          12 pounds
RG
              2.612
          Diff
              0.043
          MB Diff
              0.011
          