Identify This BCG

[5pins]

A little off subject. I got a BCG I got from Grant that had the marked ground off. Outside in bright daylight, the original F mark can be seen. Is it correct to assume that F stands for FN Mfg?

I had one where someone did a bad job grinding it it off and you could make out a C.

[Cagemonkey]

I double checked and its a single F thats visible up through the ground out part on the left side of the bolt carrier.

[logan09]

I double checked and its a single F thats visible up through the ground out part on the left side of the bolt carrier.

Look on page 2. https://www.m4carbine.net/showthread.php?p=349273

[Cagemonkey]

Look on page 2. https://www.m4carbine.net/showthread.php?p=349273

Thanks for the link/answer.

[BufordTJustice]

I've seen several TC marked carriers in DPMS rifles.

+1

The last two DPMS rifles I saw were .223 'sporticals' (what a gay name...)....and they both had this marking on their BC. I have no idea who makes it though

[Magic_Salad0892]

If Tool Craft is making them for DPMS and others I'm wondering why they're marked with TC and not 1B1B6 (their CAGE code). Their CAGE code tells me that they likely passed the QC and standards for sale to the US Gov't for US military rifles. Maybe the ones that don't pass these standards are marked TC.

I have a Tool Craft made Fail Zero M16 carrier I'm using in my KAC SR15E3 and it's marked 1B1B6.

My FailZero carrier (That I'm using in one of my KAC guns) has this marking as well.

Thanks for helping me figure out who made it.

[Dump1567]

Glad I found this thread.

Just got a complete DD upper from PK Firearms. The carrier has a similar grind mark and it was poorly staked. Bolt was marked CM, but no MP markings (as it was originally advertised to be).

Needless to say, I wasn't impressed. Swapped if out for a DD's and am trying to send it back to PK.

I'll look a little closer to see if it has any marks. I didn't relies it was grinded on purpose, just thought it was shotty workmanship.

[ctrmass]

I have a couple tool crafters (1b1b6) bolt carriers here in front of me.
The TC marked carrier looks like the same. Staking and all.

[.45fmjoe]

It wouldn't surprise me if DPMS orders them at a cheaper price point by cutting corners in production and to distinguish between a "mil-spec" and a DPMS shit-spec carrier they mark them differently.

[polymorpheous]

Glad I found this thread.

Bolt was marked CM, but no MP markings (as it was originally advertised to be).

Ordering a bolt from Bravo and they come with this marking (CM). They also are marked MP.

CM is Continental Machine and Tool, if I remember correctly.