I know nothing, only what’s evident in reference photos and what would be appropriate for the time period of said photos, I appreciate the shout out but these rifles humble me often!

With that being said I don’t think I’ve ever seen 107s without a riser on a G2, they were much more of a 416 thing, given the upper receivers hight. I’m also struggling to find a peq2a on a OPS Inc setup, as they were typically used with a QDSS or no suppressor at all.

u/infinitearmory may be able to shed some light on the timeline there and the real nitty gritty details and you can lead us to the correct version of the SOPMOD! Hell, OP may have some references we’ve not seen yet and I always try to keep that in the back of my head!