Originally Posted by
!Nvasi0n
I'm installing a 300 BLK barrel today onto my BCM stripped upper. I'll be mating it to a 10" spikes BAR handguard.
Here's my question. When installing the barrel, I am planning on using a borrowed vice block from my LGS. It's the clams shell type. I don't believe that they have the plastic insert for the vice block.
I know in theory it's to prevent the upper from being crushed if one were to apply to much vice pressure.
Is it absolutely necessary to use this type of device? If so I'll delay the build and buy my own tools so that I can have 100% piece of mind.
I have seen boobtube videos both ways with and without the insert during barrel installation.
But I want to do it right, this is my first complete build from the ground up...not just assembling a stripped lower.
If it is necessary could you perhaps instal the BCG minus the bolt part way into the receiver to minimize crushing, twisting, or other unwanted forces onto the upper?
Any help would be greatly appreciated gents!
I'd really like to finish this build 100% myself (minus BCM BCG assembly) without a gunsmith stepping in...it's a point of pride. I'm an engineer professionally, and I know it's something I'm capable of doing...I just wanted some added input from other SME's before proceeding!
Thanks in advance for the help guys!
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