I buy online pretty regularly… I purchased a “varmint” AR from Buds Gunshop online today actually, and bought a Kimber Pro Varmint 22-250 bolt action on Gunbroker about 2 weeks ago. Prior to that I bought another 22-250 (interarms mark X) from Cabelas online back in December…
For me, I stick to known, vetted entities like Buds or Cabelas.. or if buying off of somewhere like gunbroker or guns international I pay close attention to seller reviews, and do my homework to make sure the seller is a legitimate entity.. for example, the 22-250 I bought on gunbroker was from a pawn shop in Virginia that I was able to verify was real, held an FFL, etc.. and they had a couple of hundred positive reviews on gunbroker…
If it’s a new or un vetted or un reviewed seller, I don’t buy, no matter how good of a deal I think it might be… there will always be another deal…