在 ebay 上 listed 一根管子 /with gas block + gas tube 。。。
没出 20 min, eBay 送电邮说 - List was pulled and here is why:
You listed a gas block that we've identified as intended for use with a firearm that eBay considers to be an assault weapon. We appreciate that you chose to utilize our site, but we must ask that you please not relist in this case.