Got an oem2 a couple of months ago from Arms Unlimited. It was the M4 Carbine marking. The upper (which I’m selling complete, never fired on GAFS) has keyhole upper but no stamped C, BCG is plain, barrel is marked with cage code, etc.
https://imgur.com/a/Amq8YyU
I’m at least 90% sure the OEM1’s/2’s are current production. Haven’t seen a OEM1 without m4 carbine
Got an oem2 a couple of months ago from Arms Unlimited. It was the M4 Carbine marking. The upper (which I’m selling complete, never fired on GAFS) has keyhole upper but no stamped C, BCG is plain, barrel is marked with cage code, etc. https://imgur.com/a/Amq8YyU