Telling difference b/w BCM BCG Ionbond and Regular

[md519]

I recently purchased a BCM BCG from an individual who claims it's the Ionbonded version. It came in it's original sealed plastic wrap, with spare O-Ring. The BCG has a greenish-park looking finish to it, while the gas key is slightly darker, almost black.

Anyways, any visual cues to pick up on to tell the difference? Anything at all to help me differentiate between the two? Granted I don't have another one to compare it to, someone with both, feel free to chime in.

Cheers,
MD

[Robb Jensen]

I recently purchased a BCM BCG from an individual who claims it's the Ionbonded version. It came in it's original sealed plastic wrap, with spare O-Ring. The BCG has a greenish-park looking finish to it, while the gas key is slightly darker, almost black.

Anyways, any visual cues to pick up on to tell the difference? Anything at all to help me differentiate between the two? Granted I don't have another one to compare it to, someone with both, feel free to chime in.

Cheers,
MD

Black firing pin.... on the IonBond.