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AR15.COM
12/28/2008 6:45:35 PM EDT
I found 3 of them in a box, but they have only "+2" written on them, and no plate to go in the base, not even a hole to mount it.

What the heck are these? Off brand, or an early generation without the anti-spring rotation moldings?
12/28/2008 7:24:30 PM EDT
[#1]
Anyone?
12/28/2008 7:26:03 PM EDT
[#2]
Try the tech forums is all the advice I can offer.
12/28/2008 7:27:55 PM EDT
[#3]
Quoted:
I found 3 of them in a box, but they have only "+2" written on them, and no plate to go in the base, not even a hole to mount it.

What the heck are these? Off brand, or an early generation without the anti-spring rotation moldings?


I've gotten those as well.  I always assumed they were Chinese.