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Posted: 4/15/2008 6:45:46 AM EST
What I mean is should the under folder pivot mechanism just fit into the pressed indentations and holes in the receiver, or should there be a solid metal insert that fits inside? (as on a Polish underfolder)
Link Posted: 4/15/2008 6:50:16 AM EST
The ones I have seen do but I would say it is not necessary having built UFs.
Link Posted: 4/15/2008 8:23:08 AM EST
Its my understanding that the Chinese UF did not have a rear trunion.
Link Posted: 4/15/2008 6:07:07 PM EST
Link Posted: 4/16/2008 6:57:55 AM EST

Originally Posted By HarlanNDS:

Originally Posted By BillofRights:
What I mean is should the under folder pivot mechanism just fit into the pressed indentations and holes in the receiver, or should there be a solid metal insert that fits inside? (as on a Polish underfolder)


On a Chinese stamped receiver UF receiver, the thicker wall receiver supports the UF axle and other UF parts. The embosses in the receiver provided added strength. There is a rear block, but it sits behind the UF parts and is there to hold the back end of the recoil spring assembly and to provide a closed back end to the receiver.

Harlan
NoDak Spud LLC


That's what I remember, thanks for reminding me. It just has the cap or block but nothing that supports the UF pin.
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