https://bulletin.accurateshooter.com/2013/09/new-ar-platform-d-cat-multi-tool-performs-variety-of-key-tasks/ from AccurateShooter.com Sat, 04 Jul 2026 23:02:57 +0000 hourly 1 https://wordpress.org/?v=4.1.26 https://bulletin.accurateshooter.com/2013/09/new-ar-platform-d-cat-multi-tool-performs-variety-of-key-tasks/comment-page-1/#comment-42984 Mon, 02 Sep 2013 15:33:15 +0000 http://bulletin.accurateshooter.com/?p=53503#comment-42984 I would suggest that you take a look at the Stoner patents on the AR system.They are online.
The Ar-15 and theAR-10 are not direct impingement systems .the bolt and carrier acts as a gas piston.Try takeing the piston rings off the bolt and see if it functions.
For a direct impingnent look up the Swedish Lungman M42

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