I've been looking at flash hiders and have found a couple,  is CCF better for $98 or is Auto Burst Technologies better for $50? Doesn't make much sense to me if the two really don't differ much.

CCF has a good rep for quality, I have no clue about the other guys.

In my book a knock off is a knock off.  Some might think it a deal to buy a Roldex watch for $50 instead of the Rolex for $5,000, but as with watches, in the gun aftermarket world you usually get what you pay for.  Which would you rather have, a $25 Pro-mag that FTFeed or a $40 HK mag that works.  I too know nothing about this other guy but until I hear some good reports from people I feel I can trust I will stay with the CCF. Their quality is a given.

Either way, a FH for a Tac is a waste in my opinion.  They look ridiculous also.  Buy a SUPPRESSOR(after all, it is what the Tac was designed for).  The hundred dollars you spend on the FH is half the transfer tax.