WebSep 20, 2024 · Headspace Gauge & the AR – School of the American Rifle. September 20, 2024 by James Burton. We recently reached out to Chad Albrecht at School of the American Rifle to discuss common … WebDec 29, 2024 · M16 Maximum Headspace Gage, Ordnance Part Number 7799734, NSN 4933-00-070-7814. Disassembly of bolt not needed, gage is cut for extractor and ejector clearance. Each gage is new, in US GI pack, produced in 1991. The current production cost is very expensive, over $600.00 each, due to all the requirements.
AR-15 - Properly Check Headspace (Uninstalled Barrel)
WebMar 17, 2015 · In this Tech Tip, Brownells gun tech Steve Ostrem walks users step-by-step through the process of checking headspace on their AR-15 rifles, but new and … http://ar15.com/forums/AR-15/Headspace-check-fail/118-779587/ ricky nelson twins
AR-15 – Properly Check Headspace (Uninstalled Barrel)
WebOct 2, 2014 · thx. Whenever you swap bolts, the answer is YES you should check headspace. However, 99.9% of the time when dealing with ar15s, the bcg should headspace correctly no matter what upper they go into. A go/nogo gauge is really cheap and getting an ejector removal tool is rather cheap as well. WebMar 24, 2024 · The Hornady headspace gauge can easily give you a measurement that is 0.005” – 0.008” shorter than the absolute cartridge headspace. The fact that your bolt closes on your 1.4696” gauge proves that your 1.4655” reading is not the actual headspace of your chamber (assuming that your 1.4696" gauge is in spec). WebYou won't get a definitive yes/no on checking headspace. I did it because I'm a safety guy, and prefer that peace of mind. I'm also a statistics guy, and understand how survivorship bias can skew answers. People love to say "I didn't check headspace on my two rifles and I was fine, so you will be too". People do NOT love to say "I built one ... ricky nelson vf top