Considering that the E1B has been backordered for a while due to high demand and not enough supply, I'd say that it'll be a while before these clips become available separately. Last I heard, the E1B's were backordered for 6 weeks! But that was about two weeks ago...so 4 weeks left! Whoohoo! Although, I know a shooting range near me that has a few E1B's in stock...but full retail price + CA 8.25% tax = I'm waiting 4 weeks.