I've got a stock (DIY modded) BAR10 with no upgrade parts. Will the IR Hop Z kit (http://www.airsoftgi.com/product_info.php?products_id=10710) fit the barrel window of my BAR10? The kit comes with 3 different patches, and I'm just wondering it one was designed for BAR10/VSR10 barrels. Also, can anyone tell me if IR hops have good airseals? Would I be better off with a KA or Nineball standard bucking? What about the REAPS bucking? Also, will the IR hop work with the TDC mod? Thanks!