Lewis
I have examined an AR20 but not shot one, I think you will find that it is a 10 mt rifle and the FT is derived from it not the other way around.
As for the quality, Hammerli is now owned by the Umarex group and although a similar design as the originals it is made at their factory at Arnsberg. A senior man at Walther (also part of the Umarex group who produce other Hammerli designs) told me that the original Hammerli's had quality issues which when they were a competitor was to their advantage, now as part of the group it's their problem, and one they have been serious about sorting.
The AR 20 is probably the best 10 mt rifle available new for the price, but its near enough half of the better rifles and you get what you pay for, and although it will no doubt be accurate the the trigger will be its weakness as the money on better rifles goes on better triggers. In my view you will get a much better rifle by spending the same money or less on a S/H rifle such as a FWB 600 series, Walther LGR, etc.
Good Shooting
Robin
Walther KK500 Alutec expert special - Barnard .223 "wilde" in a Walther KK500 Alutec stock, mmm...tasty!! - Keppeler 6 mmBR with Walther grip and wood! I may be a Walther-phile?