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5.56MM MAXIMUM HEADSPACE GAUGE Reviews & Ratings

COLT FIELD 5.56X45MM HEADSPACE GAUGE

Made to the Colt factory's special dimensions for M16/AR-15 rifles. It measures the maximum factory acceptable headspace; an essential check on guns that have seen extensive service or have been rebarreled.

Headspace measurement: 1.4736 Max

SPECIFICATIONS:

Hardened Ground Steel
Length: 1.65"
Diameter: 0.3655"

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Reviews Summary

Overall, the Forster 5.56MM Maximum Headspace Gauge receives significant praise for its quality and functionality. Many users find it essential for ensuring safety in their AR builds. Some concerns arise regarding the lack of a relief groove for ejectors, which may require modifications. Despite minor drawbacks, the gauge is seen as a worthwhile investment for AR-15 enthusiasts.

What Reviewers Are Saying

Product Quality

65%

Reviewers are impressed with the build quality of the Forster headspace gauge, noting it is well made and reliable for verifying safety in AR builds. Many express confidence in Forster's reputation.

Functionality and Usefulness

70%

Multiple reviews highlight the gauge's effectiveness in checking headspace, particularly for AR-15 platforms. Users appreciate its role in confirming safety and mil-spec compliance during rifle assembly.

Modifications Required

25%

A few reviewers mention the necessity for modifications, specifically referencing the lack of a relief groove for the plunger ejector. This raises concerns about usability without further adjustments.

Safety Assurance

60%

Several users emphasize the importance of using the gauge to ensure their rifles are safe to fire. The investment is viewed as minimal when considering the potential risks of unsafe headspace.

Price-Value Ratio

50%

Many customers find the price of the gauge reasonable for the peace of mind it provides. They consider it a small cost relative to ensuring firearm safety.

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A Design Oversight

For a headspace gauge intended for use in an AR-15, you would think that Forster would have cut a relief groove for the plunger ejector. Rather than chase ejectors around the garage, I’ll be doing some grinding on mine - and choosing more carefully in the future.

by Terry N. on December 17, 2023

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