Echo1 - Complete Gearbox for Echo1 M249 AEG SeriesE1-M249-COMP
Complete gearbox includes:
-Reinforced Cylinder / Piston set
-Metal Spring Guide.
-All the screws
-All the wiring, tappet, and fuse.
-Reinforced Metal gearbox shell.
A great upgrade if you have a old version of the Classic Army M249! Newer design and better performance compare to older technology!