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Posted: 10/10/2004 1:51:56 PM EST
[Last Edit: 10/10/2004 1:52:09 PM EST by SC-Texas]
I just got two DPMS lowers. How can I tell if they are cast or forged?
Link Posted: 10/10/2004 2:43:00 PM EST
The serial numbers appear to end with a "K", but the K isn't engraved. Its barely visible, like a lser etching.
Link Posted: 10/10/2004 5:24:12 PM EST
The cast lowers will have raised lettering and logo. The forged lower will have the lettering engraved into the lower.
Link Posted: 10/10/2004 5:29:57 PM EST
OK, that's good. I am using one for my wifes rifle and the other for my 6.8mm deer/tactical rifle.

Thanks.
Link Posted: 10/14/2004 1:09:40 PM EST
on your ser # of your reciever if forged will start with the letter "F"
on sand cast they have no letter the "K" on the end that is light stands for KIT or to let them know it left them as parts and not a rifle very old fordge recievers will not have the letter "F" on them
Link Posted: 10/15/2004 3:19:29 AM EST
[Last Edit: 10/15/2004 3:19:54 AM EST by metroplex]
One other way to tell is to see if it pings when you tap it with a hard object.

When I was installing the RRA parts onto my Ameetec Arms stripped lower, I could hear it ping like a forged piece of metal (forged crankshafts will make this sound) whenever I used the punch to drive in the roll pins.

If it's cast, it will just go THUNK. Ever smack a forged craftsman socket on the ground and it makes that ringing noise?
Link Posted: 10/15/2004 5:37:42 AM EST
It starts ith an "F"
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