Introducing the SL-15 | My Best AR-15 Lower Yet
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My Best AR-9 Lower Yet
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Hoffman Super Safety Function
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Accuracy Testing The Orca
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I Printed an AR-15
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Exploring 3D Printing For Firearms: What You Need To Know
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Cómo funciona un AR-15
30:46
Designing Built In Supports For 3D Printing | A Brief Intro
14:23