We remain fully operational. Our teams are working around the clock to ensure your deliveries continue safely.
DOWNLOAD THE APP
Customer Services
Copyright © 2025 Desertcart Holdings Limited
DOWNLOAD THE APP
🔍 Master your rifle’s chamber with precision and confidence!
The Forster Products 300 AAC Blackout Headspace Gauge Set GO and NO-GO is a precision-engineered tool designed for gunsmiths to accurately measure rifle chamber headspace. Manufactured from hardened steel and ground to exact ANSI and SAAMI tolerances (±0.00015 inch), it features dual GO and NO-GO gauges to ensure safe, tight, and reliable chamber dimensions for 300 AAC Blackout cartridges, preventing dangerous excessive headspace and optimizing firearm performance.
| Customer Reviews | 4.2 out of 5 stars 53 Reviews |
T**R
Good Tool
Good gauges works fine. no problems
C**Z
works as described.
works as described.
S**R
Worked just fine
The gauges seem to work fine for my new rifle barrel. The action closes on the Go gauge and doesn't on the No Go gauge. That's pretty much all they are good for, and seem to be in spec.
P**W
Gauges were out of spec
Purchased this set to do as the name says. Started with the No-Go gauge bolt didn’t close as expected. Moved on to the Go gauge, bolt still would not close. Tried with a dummy round, bolt would close just fine. Got my caliper out and checked the specs of the gauges. Both of them were out of spec from what was printed on the side of the gauge by a significant amount. You can shoot your shot on them working for you but just know you run the chance of having to send them back.
T**R
Nice tool
Nice set at a good price
D**C
Did the job!
I used these to check my head spacing(as the name suggests) on my build and they work as they should, and I’ve had no issues after a few hundred rounds.
M**T
Invaluable tool to re-barrel your weapon!
Works as advertised.
M**R
If you buy the best then you don’t need to worry about the rest!
Forster products have never let me down!
Trustpilot
1 week ago
2 weeks ago