Just an update to my previous post. I've now ordered 5 guns from Asia Airsoft over the last six months or so, 3 pistols and 2 rifles. So far 4 have arrived within about 10 to 15 days of ordering and I've not been hit with any customs charges yet, (the 5th one, an HK3P P226 I only ordered this week, so I'm still waiting for that to arrive. I hope I've not just jinxed myself.)
The pistols have come through normal post, but I was expecting to definitely be hit with some form of hold up and customs charges on the rifles, but my WE Scar H came through with no issues in August and my Ares L1A1 arrived without issue yesterday. I'd say they are definitely worth a look, good stock, reasonable price. I had a slight issue with my very first order a while ago, ordered a Peq box, suppressor and other bits and pieces. Most items arrived, but the suppressor was missing. I got in touch with them via email and received a phone call from them within a day or so, but I was at work, so they emailed me. The suppressor was out of stock so they gave me the option of an alternative or a refund. They refunded my via PayPal, no issues.
Just so you know, I have no affiliation with Asia Airsoft whatsoever and cannot guarantee that others will not be charged by customs, I may just have been lucky