Achieve MAX PUMP With This Simple Trick

Published on August 4, 2023
Duration: 15:39

This guide details the construction and operation of the 'Apple Pie' pump-action AR-15, a 3D-printed firearm designed for 50-state legal compliance. It covers material selection (PLA+ vs. glass-filled nylon), caliber choices (5.56 NATO vs. .300 Blackout), and the benefits of pump-action for suppressed subsonic rounds. The video features insights from recognized designers like Corey (@3D_Arms) and Middleton Made, highlighting their expertise in additive manufacturing for firearms.

Quick Summary

The 'Apple Pie' AR-15 is 50-state legal due to its pump-action design, avoiding semi-automatic restrictions. Recommended materials include glass-filled nylon for durability. Subsonic .300 Blackout with a suppressor offers 'movie quiet' operation. Estimated build cost is $200-$270.

Chapters

  1. 00:00Introduction and Shooting Montage
  2. 00:58Guest Introduction: 3D_Arms
  3. 01:41Sponsor Shoutout: KAK Industry
  4. 02:18Legality and Compliance
  5. 03:29Technical Design: 3D Printed Bolt Carrier
  6. 04:24Collaboration with Middleton Made
  7. 05:02Materials and Filaments
  8. 05:55Calibers and Suppression
  9. 07:14Live Fire Demonstration
  10. 10:46Build Cost and Final Thoughts

Frequently Asked Questions

What makes the 'Apple Pie' AR-15 50-state legal?

The 'Apple Pie' AR-15 is considered 50-state legal because it utilizes a pump-action mechanism instead of a semi-automatic one. This distinction means it does not fall under many state-level "assault weapon" bans that specifically target semi-automatic firearms.

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

For lower-stress components, PLA+ is sufficient. However, for parts requiring greater heat resistance and durability, such as the bolt carrier and receiver, glass-filled nylon filaments from brands like Coex, 3DXTech, or PolyMaker are recommended by the creators.

How quiet is a suppressed subsonic .300 Blackout round in the 'Apple Pie' AR-15?

When fired through a suppressed pump-action AR-15, subsonic .300 Blackout ammunition is exceptionally quiet, often described as 'movie quiet.' This is largely due to the absence of the mechanical noise typically associated with semi-automatic actions.

What is the estimated build cost for the 'Apple Pie' pump-action AR-15?

The estimated build cost for the 'Apple Pie' pump-action AR-15 ranges from approximately $200 for a version using PLA+ filament to around $270 for a more durable build utilizing glass-filled nylon. This estimate excludes the cost of the lower receiver and optics.

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