I would post a picture but all mine are always too large for this website so please bear with me.
I’ve stumbled across an upper I didn’t know I had. It is marked with a stamped “BCM4” above the gas tube hole in the upper, and has a recessed star-within-circle forge mark that I haven’t been able to find a reference to.
Is this a legit BCM forge mark? I have one that I am absolutely certain is a BCM Blem upper with no forge mark, and “BCM4
••” stamped above the gas tube port.
Curious? I figured they procured from multiple OEMs but I’ve never seen this forge marking.
Edit: I’ve tried posting pics from my phone and NOTHING works, what am I missing here?
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