sharpcoolman
Member
Hello folks. I built an AR-15 and everything checked out barrel nut torque, gas tube and gas block alignment, headspacing, and all of the sordid little details. However i start shooting my new marvel of engineering, after 250 rounds the gas rings are worn to almoast nothing and need to be replaced, the upper has worn areas in the aluminium (tracks were the bolt has been riding in) i am saying to myself it has been only 250 rounds how could all of this happen? Is it normal to see this kind of wear? 
Should i replace gas rings, is it critical, and are they supposed to wear so quickly? My first AR-15 yes, everythings is to speck my friend is a certified gunsmith and he helpped me build it and inspected it before firing. It fed, extracted and fired perfectly every time except one failure to fire but it was a bad primer (ammo failure) not the firearm. Any help or advice would be nice.
Should i replace gas rings, is it critical, and are they supposed to wear so quickly? My first AR-15 yes, everythings is to speck my friend is a certified gunsmith and he helpped me build it and inspected it before firing. It fed, extracted and fired perfectly every time except one failure to fire but it was a bad primer (ammo failure) not the firearm. Any help or advice would be nice.
