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BROWNELLS
5.56MM MAXIMUM HEADSPACE GAUGE

757253992421 319418033

Description
Ratings (3)

Factory Specified Size Measures M16/AR-15 Maximum Headspace

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.

SPECS: Hardened and ground steel. 1.65" (4.2cm) overall (this is NOT the "headspace" dimension). .3655" (9.3mm) diameter.

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Customer ratings for BROWNELLS COLT FIELD 5.56X45MM HEADSPACE GAUGE 1.4736

Number of ratings: 3
From brownells.com: 3
Average rating: 5

It works (21/01/2011)

Yes, it works! Take note before use, don't slam it into battery as it can damage the gun and/or guage.

A must have for the AR-15 owner (16/07/2012)

I bought this gauge to know without a doubt that my rifle would be safe to fire and free of any factory defects in headspace. This gauge is also a must have for any AR-15 shooter who wants to replace a bolt or buy a different bolt than what was originally supplied by the manufacturer of the upper receiver.

Does its job, extra security (18/03/2014)

I purchased this to verify the headspace in my AR build did not exceed spec as I built the upper from individual parts. It checked out fine and shot fine as I figured it would. However, 22 bucks is a small amount to verify safety. Sure, you could just shoot it and make sure the cases arn't bulging or the primer backing out. Still worth it to me and it was nice to verify everything was indeed mil-spec. This should be a do it yourself job for anyone that can successfully build their own AR, just a matter of stripping the bolt.

Read 3 more ratings on brownells.com

54.9 54.9 1 GBP

Product no.: 319418033
BROWNELLS COLT FIELD 5.56X45MM HEADSPACE GAUGE 1.4736 757253992421 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.

54.9 GBP 0 £54.90 *

Backordered, delivery time approx. 4-12 weeks from the USA warehouse.

Specs: Cartridge: 5.56 mm NATO Style: Field Gauge

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Attributes

Cartridge: 5.56 mm NATO Style: Field Gauge Delivery weight: 0.068kg Shipping height: 18mm Shipping width: 86mm Shipping length: 157mm UPC : 757253992421

Item details

Made in USA

Ensure your M16/AR-15's accuracy with the 5.56MM Maximum Headspace Gauge 🔧 from Brownells. Perfect for extensive service checks!

Description
Ratings (3)

Factory Specified Size Measures M16/AR-15 Maximum Headspace

SPECS: Hardened and ground steel. 1.65" (4.2cm) overall (this is NOT the "headspace" dimension). .3655" (9.3mm) diameter.

More...

Customer ratings for BROWNELLS COLT FIELD 5.56X45MM HEADSPACE GAUGE 1.4736

Number of ratings: 3
From brownells.com: 3
Average rating: 5

It works (21/01/2011)

Yes, it works! Take note before use, don't slam it into battery as it can damage the gun and/or guage.

A must have for the AR-15 owner (16/07/2012)

Does its job, extra security (18/03/2014)

Read 3 more ratings on brownells.com

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