QIUFENG CHRONOGRAPH UNBOXING REVIEW 07/07/2024

Qiufeng chronograph (unbranded AirForce One) unboxing review bought from AliExpress. Seems to work well out of the box, though I did have to modify the 50mm 1/2 inch UNF to 1/2 inch UNF extender (from Best Fittings, Part No. 10B3-AL09) to fit the shorter thread inside this Chronograph.
Orcair App works pretty good and pairs up well. Only tested with my Crosman 2240 so far, so will now be testing on many more pistols and some of my rifles.