WGC Shop is offering you a free Magpul PMAG M Magazine when you buy from them the MagPul PTS Masada ACR. You get a few savings with the free magazine as the price of the ACR is US$450, which is basically the same price as what other Hong Kong based airsoft retailers offer. The price does not yet include shipping costs. While the ACR in the photos is in Foliage Green colour, the promo might also apply to other colours, just check with WGC if it is applicable.