Looking For Uncle Mikes 870 Exp Mag-Cap 20 Gauge

[wonksy]

Looking for the Uncle Mikes Remington 870 Exp Mag Cap Kit(ratchet type)
20 Gauge...kit number 1800-5
They sent me the 12 Gauge kit 1800-2 and they dont have the one I'm looking for.
Anybody know where I could find the 20 Gauge 1800-5???

Thanks