head space timimg

[Calculated steps]

Yes or no please. I have read a lot of different people saying yes, an the same amount for no.
The bolt and barrel are both from stad arms. Does the head space timing need to be checked?
I want to shoot it today.

 

[ksenter]

too late to shoot it today at this point, if you havent already...but no. You didnt change the barrel extension, which is where the bolt is headspaced, and using same bolt. I have never heard of an out of spec headspace issue on an AR. I'm sure it happens, but you're probably more likely to get struck by lightning...after winning the lotto.