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1/14/2013 7:20:32 PM EDT
Have any of you machinist types come up with a way to clamp a lower receiver more securely than a standard magwell lower vise block allows?  I want a more secure method to clamp a lower, for those times when I encounter ULTRA TIGHT castle nuts. It happens more often than one might think, and I'm always worried about lower receiver warping when dealing with these super tight castle nuts. I know someone has come up with a better fixture than the standard magwell vise blocks, no? Anyone?
1/14/2013 7:45:24 PM EDT
[#1]
Padded jaw for vise. Clamp the receiver close to the receiver extension. The magwell blocks are good for light weight work, but will allow you to jack things up quickly if you start heavy wrenching.
1/14/2013 7:48:52 PM EDT
[#2]
AR-15 Lower Reciver Jig. This will work perfect.
1/14/2013 10:20:38 PM EDT
[#3]
Quoted:
AR-15 Lower Reciver Jig. This will work perfect.


That works and if you want to be cheaper about it you could just buy some blank aluminum and drill some holes in it.

Feed a bolt / rod through each side and clamp that area down. then put the whole thing in a vise
1/15/2013 4:24:21 AM EDT
[#4]
Thanks for the info guys, but I'm really looking for a non-marring clamp setup that is more like the  materials used in the delrin/polymer lower vise blocks, as opposed to much harder anodized aluminum, as shown in the link above. Any solutions, aside from custom machining my own?
1/15/2013 4:28:36 AM EDT
[#5]
Nope.
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