G&G Midnight Hawk Tracer Unit (Black / Tan) PK249 The most you will have

The most you will have to do is cut off the circle loop at the top of your spring if your mag is of that design such as KA

Allows the user to make full use of the newly engineered G2 gearbox

Premium silicon gun sav grease for lubricating:

leg height: 6 to 9 inches

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G&G Midnight Hawk Tracer Unit (Black / Tan) PK249 The most you will haveG&G Midnight Hawk Tracer Unit is a compact, reliable tracer unit that will light up your tracer BB's! A reliable tracer unit that operates on 4x AAA batteries (not included). CCW threaded to fit on most airsoft AEGs.