ASAIK it is absolutely allowed. USA can take 2 weeks +, China usually quicker.
Airsoft Forums UK
Josh95
I'm tempted to order some from ehobby, they're cheaper and IN STOCK unlike everywhere in the f*cking uk
proffrink
Depends what mags, but eHobby is almost always more expensive than any other HK retailer - their shipping is silly. Rainbow8 is good for TM magazines, but check out WGC Shop, AEG Cart Asia and Tiger111HK. Do some intense Googling 
Josh95
ok cheers, i looked on rainbow8 they do lots of pistol mags but I'm after m4 mags. eHobby has a good deal on 'MAG' stanags, i think it was 5 for 30 quid or something.
B.S
I've been having issues finding low cap, Metal, In stock VN style M4 mags. Might be a good idea to check US sites.
Josh95
quite a few places have vn style in stock
B.S
Yeah... but... Low Cap XD I'm too fussy, My local shop have some G&G mid cap ones, so I'll probably get those. I'm just more keen on low caps
proffrink
Never worth checking US sites before HK ones, B.S. Shipping and duty will kill you.
B.S
yes, That's true.
Josh95
I would stick to madcaps at first, low cap you have the limited capacity of a GBBR but without the awesomeness.... of a GBBR. lol