Fusion Engine Manifold (V3 Excluded) SOCKS Simple zip-tie lockout/tournament lock

Simple zip-tie lockout/tournament lock

This barb fitting is used universally on all F2

Like other HPA systems

the REV3 FCU is compact enough to fit into a M4's buffer tube along with a small 300mAh Lipo pack

you probably cross-threaded it

Fusion Engine Manifold (V3 Excluded) SOCKS Simple zip-tie lockout/tournament lockThis manifold is used with all current production V2, M249, M60 and M240 Fusion Engines. This is the GEN3 manifold which is shorter than the manifold used on GEN1 and GEN2 V2 Fusion Engines but is reverse compatible with those generations. The shorter manifold allows an air line to pass underneath of the manifold and exit under the buffer tube when used with a 90 degree elbow fitting. Compatible with V2 (GEN1, GEN2 & GEN3), M249, M60 and M240 Fusion