This is a magnetic steel armature designed for the EMG and SGP series accelerators. This is the only ammunition recommended for such accelerators and we strongly discourage using armatures from unknown sources as these armatures could contain oils which could degrade the barrel or foul the optical gates.
Material: High carbon steel
Dimensions: 0.25″ Diameter x 0.75″ Length (each)
Weight: 4.6 grams (each)