Great budget build sights - Leapers UTG ACCU-SYNC Top Mounted Deployable Iron Sight

Im building my first AR and came across these Leaper UTG ACCU-SYNC sights for a pretty good price. The mounts held on the rail by 1 torq screw. Mount does seem to stay firmly in place and has no visible play. The spring action is nice and sturdy. Its a bit tough to push the metal round/smooth buttons but they do seem strong. The flip up action works well. Machining is nice and markings help on rear sight for side to side adjustment visibility. There doesn't seem to be any side to side play but you can manually move both front/rear sight a bit forward/backward when flipped up however the spring seems to keep it in place. I would recommend these sights if you get them at a decent price especially. I like the Metal construction and markings much more than comparably priced sights Ive seen on the market.