RA Challenge DIY Pack for GHK M4

Specification:

for GHK M4 Upgrading requires necessary assembly skill & technique, consult expertise if needed. RA-TECH GHK M4 forged receiver set is not compatible with GHK M4 GBB V2 (2017 version) bolt.For upgrading the forged receiver set on GHK M4 GBB V2, it is needed to take RA-TECH GHK M4 steel bolt together for compatibility. Including: 1.SVOBODA AAC 300 Black Out (FOR GHK)   M4-01    M4-02    M4-03   M4-04    M4-05    M4-06    M4-07  2.RA Precision Inner Barrel (225mm)   M4-08-1  3.Maple Leaf Hop up rubber 75°   M4-10  4.RA M4 Forged Receiver For GHK M4 GBB (AAC marking)   M4-12    M4-19  5.New Age Ejection Port Cover for WE M4   M4-13  6.New Age Forward Assist for WE M4   M4-14  7.New Age Charging Handle for WE M4   M4-18  8.New Age Receiver Pin set for WE M4   M4-20    M4-30  9.New Age Hand Guard Set   M4-31  10.RA super recoil buffer (Ver. 3)   M4-33    M4-34  11.Stock   M4-35  NOT include M4-09  M4-11  M4-15  M4-16  M4-17  M4-21  M4-22  M4-23  M4-24   M4-25  M4-26  M4-27  M4-28  M4-29  M4-32  M4-36  GHK NEW M4 GBB Mag M4-M-01  M4-M-02  M4-M-03

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