Achieve MAX PUMP With This Simple Trick

Published on August 4, 2023
Duration: 15:39

This video explores the 'Apple Pie' pump-action AR-15, a 3D-printed firearm designed for 50-state legality. It highlights the use of materials like PLA+ and glass-filled nylon for components, discusses the advantages of pump-action over semi-auto for compliance, and demonstrates the quiet operation with subsonic .300 Blackout ammunition. The project is a collaboration between 3D_Arms and Middleton Made, with KAK Industry as a sponsor.

Quick Summary

The 'Apple Pie' AR-15 utilizes a pump-action mechanism, making it 50-state legal by avoiding semi-automatic restrictions. It's constructed using 3D-printed components, with glass-filled nylon recommended for durability. Subsonic .300 Blackout ammunition offers a 'movie quiet' suppressed experience.

Chapters

  1. 00:00Introduction: Pump-Action AR-15 Montage
  2. 00:58Guest Intro: Corey @3D_Arms
  3. 01:41Sponsor Shoutout: KAK Industry
  4. 02:18Legality: 50-State Compliance Explained
  5. 03:29Design: 3D Printed Bolt Carrier
  6. 04:24Collaboration: Middleton Made
  7. 05:02Materials: PLA+ vs. Nylon Filaments
  8. 05:55Calibers & Suppression: 5.56 vs .300 BLK
  9. 07:14Live Fire Demo: Range Test
  10. 10:46Build Cost & Final Thoughts

Frequently Asked Questions

How does a pump-action AR-15 achieve 50-state legality?

The pump-action design makes the AR-15 non-semi-automatic, which bypasses many 'assault weapon' restrictions. This allows it to be legal in states like California where semi-automatic rifles with certain features are prohibited.

What materials are recommended for 3D printing firearm components like the 'Apple Pie' AR-15?

While PLA+ is sufficient for low-stress parts, glass-filled nylon is recommended for components requiring heat resistance and durability, especially during heavy use. Brands like Coex, 3DXTech, and PolyMaker offer suitable options.

Why choose pump-action over straight-pull for a 3D-printed AR-15?

The pump-action mechanism provides better mechanical leverage when cycling rounds compared to a straight-pull design. This enhanced leverage can improve reliability and ease of operation, particularly with 3D-printed components.

How quiet is a pump-action AR-15 with subsonic .300 Blackout ammunition?

When suppressed, subsonic .300 Blackout ammunition fired through a pump-action AR-15 is exceptionally quiet, often described as 'movie quiet.' The absence of semi-automatic action noise significantly reduces the overall sound signature.

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