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LoginMadbull is a Hong Kong manufacturer specialized in CNC machining. Their manufacturing precision is world renowned with a very high level of quality and control. Thanks to their quality level they have got licenses of big American manufacturers like Daniel Defense, Noveske, JP Rifle or Spike Tactical.
Greetings, I am wondering if the handguard is mil-spec upper compatible.
hello, yes GBB thread is mil spec so no problem. regards
