The Classic Army M249 Hop Up Unit is a replacement hop-up chamber for CA249 and other M249 SAW airsoft guns. The CA M249 hop up unit includes a bucking, and is compatible with standard AEG buckings. This makes it an ideal upgrade for Echo1 or A&K M249 airsoft AEGs.
Classic Army M249 Hop Up Unit Features:
-Precision Full Metal Construction
-Compatible with AEG Buckings
-Kit includes all hardware