The primary difference is an angled rear corner on Each and every with the locking lugs that matches up with an angled corner during the barrel extension’s lugs. The rearwards press on the fired spherical results in the bolt to rotate along Individuals angles until it unlocks and all the things cycles rearwards.ARMSLIST is NEVER involved with tra

fifty six. Usually, you can get the exact same outcome for much less fat and similar Charge. Except you’re married into the AR-15 ergos, there’s not really a reason to stick with a platform designed to fireplace way more impressive rounds when micro PCCs really are a thing. (Like MP5K clones or Scorpion SBRs)ARMSLIST is NEVER associated with tr