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10/20/2017 1:01:18 AM
9/22/2017 12:11:25 AM
Posted: 7/31/2005 5:31:03 AM EDT
I wrote earlier about my 9mm SBR lower cracking at the front of the magazine well. Apparently the Colt mag block's tension bolts that move outward with the tightening of a screw pushed too far. I was curious if it made sense to drill out the location of the tension bolts so the screws wouldn't put stress on the fixed lower. Therefore this drilling would cause the tension screws to become true pins/bolts rather than pushing the magazine well apart. Any advice would be greatly appreciated. Thanks in advance...
Link Posted: 7/31/2005 7:20:30 AM EDT
FYI........the ATF doesn't like any additional holes in receivers.
Link Posted: 7/31/2005 11:45:33 AM EDT
Intead of putting the holes for the tensions pins, I would see about just making a hole for pinning it in place with roll pins. I can't see the ATF getting worried about a hole in your magwell.
Link Posted: 7/31/2005 11:54:42 AM EDT
My Colt 9mm has the tension bolts and is pinned (two pins) into the lower. It came from the factory that way.

Link Posted: 8/1/2005 4:17:19 AM EDT
I don't want to "dedicate" this SBR lower to just 9mm. By putting the holes in the receiver I would be able to have the 9mm block in place and easily swap to .223. I just have a hard time taking the bit to my lower.......yikes!
Link Posted: 8/1/2005 4:26:54 AM EDT
Link Posted: 8/1/2005 1:24:45 PM EDT

Originally Posted By Tweak:

Originally Posted By Dehammer:
FYI........the ATF doesn't like any additional holes in receivers.

they must hate the hell out of the OA-98 then

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