Is there really only one company making 1.93 irons?

Swapped my SL-S for a SL-M and I must say I like the compactness but miss my battery storage already. And I need to order a new sling because I always order qd sewn in.

Swapped my SL-S for a SL-M and I must say I like the compactness but miss my battery storage already. And I need to order a new sling because I always order qd sewn in.