556-NOGO : 5.56mm NATO Caliber Headspace No-Go Gauge for AR15 / M16 Armorers Kit


This high quality machined steel gauge determines excessive headspace in the barrel's firing chamber, as well as too much chamber depth, or an undersized bolt.

A bolt that closes on a No-Go gauge means that a chamber is close to the maximum chamber size. Etched with caliber marking, and "NO GO" designation. Machined to SAAMI specifications.

Made in the USA.

Due to governmental regulations or manufacturer preferences, some product lines or items may be not be available to export in your country.

More Information
Manufacturer Number 556NOGO
UPC 154488
Brand Windham Weaponry
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