If Kirk made one, it was probably a while back. I've not seen anything on their site for Mamiya. A pity too since I always get the runaround ordering from RRS but Kirk always gets whatever I order to me quick without the hassle.
Nikon S2 Rangefinder.... F, F2, FM2, FA, N90S Nikons,
D80, D7000, D750 Nikon DSLRs, Sony a6000, Canon IIf, Leica CL, Tower type 3, Zorki 4, Vito B, Rollei 35....