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Holosun: HS503R 503 RDS – Holosun 503 RDS RDCD RTRY ALUM HS503R featuring UPC 605930625301. Commander circle – Holosun HS503R open reflex red dot sight circle dot reticle 2 MOA dot 32 MOA circle aluminum housing multi mount.
Holosun HS503R red circle dot 65 MOA circle + 2 MOA dot selectable 50k hours battery shake awake solar backup 12 brightness IP67 1x unlimited eye relief parallax free field tested trusted Holosun reliability versatile AR pistol economical reliable power saving commander circle.