GBBr Parts & Magazine(GBBr Parts)

 Gas Blowback Rifle (GBBr)- alot of brands are making their own GBB Rifle System, such as the VFC, WE-Tech, GHK, WA, KJ Works, and Viper GBB System.
Most of the parts are easy to be found in SIXmm.com. Spring, buffer tube, Bolt Carrier and other hammer set.