Warning

 

Close
Confirm Action

Are you sure you wish to do this?

Cancel Confirm
AR15.COM
AR Sponsor
10/9/2012 6:13:26 PM EDT
CAN ANYBODY TELL ME HOW IMPORTANT HEAD SPACE IS? DO MOST BCG COME WITH THE HEAD SPACE ALREADY SET? IF I BUY A BCG SEPARATE FROM THE UPPER WILL I STILL HAVE TO SET THE BCG? THANX IN ADVANCE GUYS
10/9/2012 6:37:54 PM EDT
[#1]
Search is your friend
10/9/2012 7:09:17 PM EDT
[#2]
Quoted:
CAN ANYBODY TELL ME HOW IMPORTANT HEAD SPACE IS? DO MOST BCG COME WITH THE HEAD SPACE ALREADY SET? IF I BUY A BCG SEPARATE FROM THE UPPER WILL I STILL HAVE TO SET THE BCG? THANX IN ADVANCE GUYS


K:  Its highly unlikely you will have any problems buying milspec BCG, upper receiver and barrel from 3 different name-brand makers.  The chamber dimensions are set when the barrel extension is fitted to the barrel. Only a poorly made bolt would change that. If you get into reloading your own ammo, you will need a Hornady headspace gauge to ensure your sizer is setting the shoulder of the cases back .003 to .004 inches.  It works with your dial caliper.  Without sizing your cases in this manner, you could end up with either excessive headspace or cases stuck in the chamber. - CW

http://www.midwayusa.com/product/479704/hornady-lock-n-load-headspace-gage-5-bushing-set-with-comparator
10/10/2012 5:04:03 AM EDT
[#3]
Checking headspace is a basic safety precaution.
Most are ok, but not all.
Typing in all caps is not PC unless you are trying to be rude.
AR Sponsor