---
product_id: 66627870
title: "Forster Products 5.56 NATO MIN and MAX Headspace Gage Set"
price: "26338 kr"
currency: ISK
in_stock: true
reviews_count: 9
url: https://www.desertcart.is/products/66627870-forster-products-5-56-nato-min-and-max-headspace-gage
store_origin: IS
region: Iceland
---

# Exacting Tolerance ±.00015 Precision Machined Safety Tested Forster Products 5.56 NATO MIN and MAX Headspace Gage Set

**Price:** 26338 kr
**Availability:** ✅ In Stock

## Summary

> 🔍 Measure Up to Safety and Precision!

## Quick Answers

- **What is this?** Forster Products 5.56 NATO MIN and MAX Headspace Gage Set
- **How much does it cost?** 26338 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/66627870-forster-products-5-56-nato-min-and-max-headspace-gage)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety First:** Avoid dangerous pressure issues by checking for excessive headspace with our maximum gage.
- • **Compact & Portable:** Lightweight and easy to store, this gage set is perfect for on-the-go assessments.
- • **Precision Engineering:** Crafted from hardened steel, these gages meet ANSI and SAAMI standards for ultimate reliability.
- • **Maximize Your Accuracy:** Ensure your rifle chamber is safe and precise with our NATO Headspace Gage set.
- • **Universal Compatibility:** Designed for both 5.56 NATO and commercial .223 calibers, making it a versatile addition to your toolkit.

## Overview

The Forster Products 5.56 NATO MIN and MAX Headspace Gage Set is an essential tool for ensuring the safety and accuracy of your rifle chamber. Made from high-quality hardened steel and precision machined to exacting tolerances, this set allows you to measure headspace accurately, ensuring compatibility with SAAMI maximum specifications. Ideal for both professional and amateur gunsmiths, this compact set is a must-have for anyone serious about firearm safety.

## Description

Product description Forster Headspace Gages The most reliable means to test rifle chamber length Smart gunsmiths and shooters have long selected our headspace gages because each is manufactured from top-quality, hardened steel and precision ground to *American National Standards Institute SAAMI tolerances. When safety and performance are on the line, choose our headspace gages and receive the peace of mind that comes with knowing and understanding how to check your rifle’s headspace. *American National Standards Institute, New York, NY, represents and serves the diverse interests of more than 270,000 companies and organizations and 30 million professionals worldwide by promoting and facilitating voluntary consensus standards and conformity assessment systems, and safeguarding their integrity. All of our headspace gages are Ground to an exacting ±.00015" headspace tolerance to ensure accurate testing of a rifle’s chamber. Carefully inspected with NIST-certified measurement tools. Made with painstaking care and rigorous manufacturing standards. What is Headspace? According to the Sporting Arms and Ammunition Manufacturers' Institute (SAAMI), which sets product standards for firearms and ammunition, headspace is "the distance from the face of the closed breech of a firearm to the surface in the chamber on which the cartridge case seats." Some shooters are under the misconception that headspace is fixed over the life of the firearm. Headspace can increase after repeated use of ammunition that causes too much pressure. One should routinely check rifle chamber headspace every thousand rounds. Headspace is measured differently depending on whether the firearm’s caliber uses rimmed, belted, or rimless cartridges. Rimmed/Belted and Rimless Cartridges Rimmed and Belted Cartridges Headspace = distance between the bolt face and the top of the rim (chamber face) when the bolt is closed Rimless Cartridge Headspace Headspace = distance between the bolt face and a datum line (determined by SAAMI) where the front of the cartridge rests on its shoulder when the bolt is closed Choosing the Correct Headspace Gage Forster Products offers three lengths of headspace gages per rifle caliber. In order from the shortest to longest, they are GO , NO-GO , and FIELD 1. GO : Corresponds to the minimum chamber dimensions. If a rifle closes on a GO gage, the chamber will accept ammunition that is made to SAAMI maximum specifications. The GO gage is essential for checking a newly-reamed chamber in order to ensure a tight, accurate, and safe chamber that will accept SAAMI maximum ammo. 2. NO-GO : Corresponds to the maximum headspace we recommend for gunsmiths’ chambering new bolt-action rifles. This is not a SAAMI-maximum measurement. If a rifle closes on a NO-GO gage, it may still be within SAAMI specifications, or it may have excessive headspace. To determine if there is excessive headspace, the chamber should then be checked with a FIELD gage. The NO-GO gage is a valuable tool for gunsmiths’ reaming new chambers, in order to ensure tight and accurate headspace. 3. FIELD : Corresponds to the longest safe headspace. If a rifle closes on a FIELD gage, its chamber is dangerously close to, or longer than, SAAMI-specified maximum chamber size. If chamber headspace is excessive, the gun should be taken out of service until it has been inspected and repaired by a competent gunsmith. FIELD gages are slightly shorter than the SAAMI maximum in order to give a small safety margin.

Review: Perfect. - They do exactly what they say they do. Perfect spec. Every gunsmith or hobbyist who builds should have these.
Review: Accurate and correct - Don't go cheap on precise measuring tools. I initially purchased a cheaper gauge set, but returned them after discovering they were out of spec. The Forster gauges are accurate and worked perfectly.

## Features

- 5.56 NATO CHAMBER HEADSPACE GAGE: The proper use of Headspace Gages is the most reliable way to test rifle chamber length. The 5.56 NATO maximum chambering requires a slightly longer headspace than the commercial 223 cal. Rem.
- GO/MINIMUM LENGTH: Corresponds to the minimum chamber dimensions. If a rifle closes on a GO gage, the chamber will accept ammunition that is made to SAAMI maximum specifications. The GO gage is essential for checking a newly-reamed chamber in order to ensure a tight, accurate, and safe chamber that will accept SAAMI maximum ammo. NATO Minimum rifle chamber gages check to see that the rifle will accept the longest (headspace dimension) NATO ammunition cases that are currently manufactured.
- MAXIMUM LENGTH: The Forster NATO Maximum rifle chamber gage checks to see that the rifle does not have excessive headspace, which could lead to dangerous pressure problems. The NATO Maximum Headspace Gage measures 1.6455"
- PRECISION MACHINED: Manufactured from top-quality, hardened steel and precision ground to ANSI and SAAMI tolerances. Headspace tolerance ground to a very exacting ±.00015. Each Headspace Gage thoroughly inspected with NIST-certified measurement tools to ensure the highest quality product.
- MEASURING MEANINGFUL HEADSPACE: Properly speaking, and for safety purposes, one measures “headspace” as the difference between the length of a standard cartridge, as represented by a gage, and the gun’s actual chamber length , when the head of the cartridge is flush against the bolt face.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Package Dimensions L x W x H | 5 x 3 x 1 inches |
| Package Weight | 0.07 Kilograms |
| Brand Name | Forster Products |
| Model Name | NATO Chamber Headspace Gauges |
| Color | Silver |
| Material | Steel |
| Suggested Users | unisex-adult |
| Manufacturer | Forster Products |
| Part Number | HG0223G+HG556 |
| Size | One Size |

## Images

![Forster Products 5.56 NATO MIN and MAX Headspace Gage Set - Image 1](https://m.media-amazon.com/images/I/61qBUcJFDeL.jpg)
![Forster Products 5.56 NATO MIN and MAX Headspace Gage Set - Image 2](https://m.media-amazon.com/images/I/71aJAqzE3yL.jpg)
![Forster Products 5.56 NATO MIN and MAX Headspace Gage Set - Image 3](https://m.media-amazon.com/images/I/710TKtMmGEL.jpg)
![Forster Products 5.56 NATO MIN and MAX Headspace Gage Set - Image 4](https://m.media-amazon.com/images/I/71kklNPYSEL.jpg)
![Forster Products 5.56 NATO MIN and MAX Headspace Gage Set - Image 5](https://m.media-amazon.com/images/I/71Q5iFxUK6L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect.
*by M***E on February 20, 2026*

They do exactly what they say they do. Perfect spec. Every gunsmith or hobbyist who builds should have these.

### ⭐⭐⭐⭐⭐ Accurate and correct
*by D***H on October 16, 2025*

Don't go cheap on precise measuring tools. I initially purchased a cheaper gauge set, but returned them after discovering they were out of spec. The Forster gauges are accurate and worked perfectly.

### ⭐⭐⭐⭐⭐ It works Great.
*by M***R on April 25, 2026*

A bit pricey, but can you put a price on having piece of mind that your 556 rifle wont blow up on you? They work as expected.

## Frequently Bought Together

- Forster Products 5.56 NATO MIN and MAX Headspace Gage Set
- AeroShell 33MS / 64 Gun Grease .5oz / Mil-Spec
- Wheeler Engineering Receiver Lapping Tool with Steel Lapping Bar and 220 Grit for Gunsmithing, Barrel Installation, and Accuracy

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-05-24*