308 Winchester Headspace Gauge Set GO and NO-GO

These worked great and allowed me to finish my project.

A must have product if you are planning on building rifles. I used these on a bolt action build and they worked perfectly, rifle shot amazing groups after I assembled it and took it to the range. Headspace is very very important, these gauges are worth the money if you are doing any kind of custom barreling. Wrong head spacing can be disastrous as it will cause a catastrophic failure in the chamber if it is incorrect! Pay the money and get gauges for your caliber!

These are phenomenal and accurate little guys. Should you find your boat closing on a Nogo gauge check out the head spacing or have a qualified gunsmiths looked at it if you do not know what you’re doing if it closes on the go, Gage, you are all good. This is the easiest and most effective ways to determine whether your head spacing is proper. Not setting your head space properly can cause a jet to form and come out the back of the firearm.

Must have for rifle building. Arrived fast

These "go / no-go" gauges are essential for checking the safety of your chamber tolerances in your rifle, especially when you build an AR-10 pattern rifle. VERY Few customers coming into our gunsmith shop even know these exist, and yes, they're "spendy", it's far less than the co-pay for most ER visits.

I just finished an AR10 build for my son. I followed the advice of several "guntubers" and bought these to do a headspace check before test firing the rifle, and I'm very glad I did.

These laser bore sighters are really really good I like them and they are easy to use and they fit numerous calibers and that's another plus and at a good price THANK YOU for your product !

they measure ok but the markings are not clear

good stuff thanks