GP-MEB019BK

MEB012BK—>Taper

-適用於Marui M4 / M16 系列

-適用於M4A1伸縮電池尾托 (GP416 / GP417 / GP418)

包含:

-New Dust Cover Set

-New Bolt Cover

-Metal Hop-Up Set

-Receiver Pin Set

-Forward Assist Knob