Run the QRP that comes with the PRO for now. The difference is pretty minor - I suppose if the weight was the same the cantilever would theoretically move an ounce of mass 3/4" farther back, but that's beyond splitting hairs for balance. Just run what's already there.
I'd at least check G&R Tac for an H-1/ADM or H-1/DD setup, depending on whether you need the ability to quick detach the micro aimpoint. Also, used is worth a look - despite being small, the micro aimpoints are tough as hell, and now that there's a T2 there might be some lightly used ones shaking out on the EE, most of which will include mounts.
عندما تصبح الأسلحة محظورة, قد يملكون حظرون عندهم فقط
کله چی سلاح منع شوی دی، یوازي غلوونکۍ یی به درلود
Semper Fi
"Being able to do the basics, on demand, takes practice. " - Sinister
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