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LoginIt is very easy to install and operate the softer rubber bucking as it'll allow the BB to fire out easily without any problems as it was designed, specifically for the Echo 1 M28 and VSR-10, to seal the air tightly and prevent double feeding. You must apply silicon oil outside the bucking before use !
Madbull 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.
No customer questions for the moment.
