Need some help on BCM markings

[Mysteryman]

So I got this upper and it was sold as a BCM upper. It's 11.5" a heavy barrel, marked " B MP 5.56 NATO 1:9 HBAR". My research and knowledge says it is a Bushmaster upper. The FSB is not "F" marked and there is no "BCM" on the right side rear of the receiver. The Upper is a "keyhole" upper and both of my BCM uppers are the broken "A" (Anchor Harvey?) forge markings. Has BCM ever used "keyhole" forgings?

MM

[steyrman13]

Sounds like a bushmaster at every angle

[quackhead]

BCM puts their logo on side of receiver and has rail markings. I'm pretty sure they only did 1/7 twist as well

[SmugPePe]

Check the face of upper receiver if it say BCM4 its BCM. if M4 its bushmaster. But hearing the barrel stamp the barrel is bushmaster im 98% sure. I have one and i love it.

[HighDesert]

Check the face of upper receiver if it say BCM4 its BCM. if M4 its bushmaster. But hearing the barrel stamp the barrel is bushmaster im 98% sure. I have one and i love it.

This is a more recent change for bcm - maybe around 2013 or 14 is when they started marking the uppers receivers bcm4.

[Stickman]

So I got this upper and it was sold as a BCM upper. It's 11.5" a heavy barrel, marked " B MP 5.56 NATO 1:9 HBAR". My research and knowledge says it is a Bushmaster upper. The FSB is not "F" marked and there is no "BCM" on the right side rear of the receiver. The Upper is a "keyhole" upper and both of my BCM uppers are the broken "A" (Anchor Harvey?) forge markings. Has BCM ever used "keyhole" forgings?

MM

I guess the question now is if you can return it....

[Iraqgunz]

Well the "mystery" is solved. You have a POS Bushmaster upper. Now take it back and get your money back.

So I got this upper and it was sold as a BCM upper. It's 11.5" a heavy barrel, marked " B MP 5.56 NATO 1:9 HBAR". My research and knowledge says it is a Bushmaster upper. The FSB is not "F" marked and there is no "BCM" on the right side rear of the receiver. The Upper is a "keyhole" upper and both of my BCM uppers are the broken "A" (Anchor Harvey?) forge markings. Has BCM ever used "keyhole" forgings?

MM

[Mysteryman]

Well the "mystery" is solved. You have a POS Bushmaster upper. Now take it back and get your money back.

It was a used sale and yes it's going back. Thanks for everyone's help. I didn't want to tear the guy a new one for misrepresenting the upper until I was sure he was screwing me.

MM

[Eurodriver]

It happens.

About 5 years ago I bought a "Colt" 10.3" upper on M4C.

As soon as I got it I looked down the barrel and immediately knew it was 1:9. Luckily he took it back, but between ignorant sellers and scammers I don't even buy used stuff anymore unless the dude has a rep.

[SmugPePe]

Really? Thanks didnt know that, that's good change. Myself i'm not fan of bcm white marking so i bought stripped bcm blem upper which i assembled and them end up selling it no regret could alway pick another one up. The extension housing is indeed tighter than average.