Check the listing for details. Manson Precision Go Headspace Gauges for .45 Auto Go. Color: Silver, Condition: New. Listed at 59.99 USD. This Manson Precision headspace Go gauge is a must-have for any gunsmith or enthusiast who is looking for a reliable and accurate measurement tool for their .45 Auto caliber firearm. Made of high-quality steel material, this headspace gauge is designed to provide precise readings without any interference from external factors. Its silver color and sleek design make it a stylish addition to any toolkit. With its custom bundle, this headspace gauge is a great choice for those who want to complete their set of gunsmithing tools. Its non-domestic product status and vintage-free design make it a perfect fit for those who want to use it for their hunting and sporting needs. So, whether you are a professional gunsmith or a hobbyist, this Manson Precision headspace gauge is a great investment for your .45 Auto caliber firearm.