Just picked up a Faxon 12.5" 6mm ARC barrel and plan to build a SBR/pistol upper. Already have an 18" 6 ARC upper but thought a shorty capable of stretching out to 800-1000 yards while still being compact would be cool. Anyone have experience putting together a similar build? Any recommendations ? I am thinking of going with a PA SLX Griffin Mil X 1-8 LPVO since it has 10 mils of elevation in the reticle and can be had for around $500. Not looking to overspend on glass since I already have other gucci builds. Appreciate any advice on the 6ARC shorty route.