G&P/King Arms/WA Magpul PTS GBBR Pmag

  • Mag capactity- 39 rounds (feeds better at 35)
    Gas efficiency- 1.5-2.5 mags per fill
    Material- aluminum, brass, steel, polymer

    Gas release valve reset arm has a roller bearing on it

    Cool down is not a huge problem unless firing on full auto or quick semi firing, does not cool down fast in regular semi auto fire

    comes in sand and black, there is also a KWA LM4 version in black


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