Warning

 

Close

Confirm Action

Are you sure you wish to do this?

Confirm Cancel
Member Login

Site Notices
Posted: 4/14/2006 1:00:30 PM EST
OK, I got a bunch of receivers bent. I heat treated the separate rails and the X and Y group holes, each side.

Do I need to harden the top receiver rails that the bolt carrier rides on?
Link Posted: 4/14/2006 1:25:41 PM EST
I do, others don't. Sorry for the no info.

SRM
Link Posted: 4/14/2006 5:15:38 PM EST

Originally Posted By SRM:
I dodon't, others don'tdo. Sorry for the no info.

SRM



Link Posted: 4/14/2006 9:05:03 PM EST
I would not harden the upper rails. Using a torch there is too much risk of warping, uneven heating and grain growth due to over heating that could cause cracks later. I don't think there are any issues out there with normalized (soft) rails.

Link Posted: 4/15/2006 12:10:21 PM EST

Originally Posted By twistedneck:
I would not harden the upper rails. Using a torch there is too much risk of warping, uneven heating and grain growth due to over heating that could cause cracks later. I don't think there are any issues out there with normalized (soft) rails.




+1
Link Posted: 4/16/2006 3:36:30 AM EST

Useful info. Was just thinking about whether or not I should harden the upper rails too.... thanks.
Top Top