d_t_a
(d_t_a)
198
The number refers to the model of the optic… In the case of the D4S, I recall it uses the Ledil Angie 2285 (which is the “2285” on the optic)
Someone here in BLF sent me a Ledil Angie 2287 some time ago (since I also was unable to source such an optic), which I posted in the message thread below: (the number “2287” is labeled on that optic)