Shares of the TASER maker fell despite a strong earnings report.Shares of Axon Enterprise (AXON -4.55%) were falling today after the company beat estimates in its first-quarter earnings report. Investors seemed to think the results weren't enough to justify the company's high valuation.As a result, the stock was down 4.7% as of 2:57 p.m. ET. Axon's good but not-good-enough quarterAxon, which makes the TASER electrical stun gun, as well as body and dashboard cameras for law enforcement, said that revenue in ...