Gen-12 12ga AR10 Conversion from Genesis Arms

Published on July 29, 2018
Duration: 13:03

This video details the Genesis Arms Gen-12 12-gauge upper receiver designed to convert an AR-10 lower into a semi-automatic 12-gauge firearm. The review highlights the innovative reciprocating barrel design, the lightweight yet robust 12-gauge bolt, and the specialized magazine follower that trips the bolt hold open. It also discusses the challenges of feeding various 12-gauge ammunition types and the necessary modifications to an AR-10 lower, such as a beveled magazine catch and a squared bolt catch, to ensure reliable function.

Quick Summary

The Genesis Arms Gen-12 is a 12-gauge upper receiver that converts an AR-10 lower into a semi-automatic shotgun. It features a reciprocating barrel design and a specialized bolt. While compatible with AR-10 lowers, modifications like a beveled magazine catch and squared bolt catch are recommended for reliable feeding and function.

Chapters

  1. 00:00Introduction to Gen-12 Upper
  2. 00:46Design Innovations
  3. 01:49Accessories and Barrel Threading
  4. 02:20Bolt Removal and Inspection
  5. 03:33Internal Receiver and Barrel Reciprocation
  6. 04:10Ammunition Variety and Feeding Challenges
  7. 06:00AR-10 Lower Modifications
  8. 06:07Magazine Design and Fitment
  9. 07:36Genesis Arms Beef-Up Kit
  10. 08:55Bolt Catch and Release Modification
  11. 09:38Magazine Follower Brilliance
  12. 11:03Muzzle Device Considerations
  13. 11:38Excitement for Testing
  14. 12:45Conclusion and Innovation

Frequently Asked Questions

What is the Genesis Arms Gen-12?

The Genesis Arms Gen-12 is a 12-gauge upper receiver designed to convert an AR-10 lower receiver into a semi-automatic 12-gauge firearm. It features a unique reciprocating barrel design and is intended to offer a box-magazine-fed shotgun experience on an AR platform.

How does the Genesis Arms Gen-12 upper work?

The Gen-12 upper utilizes a reciprocating barrel system and a spring-loaded bolt to manage the 12-gauge rounds. This innovative design allows it to function on a standard AR-10 lower receiver, though some modifications to the lower may be recommended for optimal performance.

What modifications are needed for an AR-10 lower to use the Gen-12 upper?

While the Gen-12 upper is designed to be compatible with AR-10 lowers, some modifications are recommended. These often include a beveled magazine catch to properly seat the 12-gauge magazine and a squared-off bolt catch to ensure reliable operation with the shotgun's cycling mechanism.

Can any 12-gauge ammunition be used with the Gen-12?

The Gen-12 can handle a variety of 12-gauge ammunition, including birdshot, buckshot, and slugs. However, feeding can be challenging due to variations in shell length and material friction. The performance with lighter loads may also be affected by the weight of accessories like muzzle brakes.

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