Will this sling fit my ISC 5/8 block?

Hello, We make these pocketSLINGS® with 6" pockets. As a double check measure your block compared to this pocket size. Below is what we state for this pocketSLING®

• Will fit most smaller blocks
  • Exceptions CMI RP146 (1" Blue), ISC RP57 (Yellow), DMM Impact Large

In the event you need the pockets slightly bigger feel free to ask for that in the order comments at checkout. We can always make custom products.