The Polish GROT 922R Compliant & AR 15 Mag Compatible

Published on January 27, 2026
Duration: 0:30

Andrew from Arms of America details the 922R compliance of the Polish GROT rifle, explaining how US parts are used to meet the requirement for 16-inch barrel length when using the original stock. He also highlights the rifle's compatibility with standard AR-15 magazines and its chambering in .223/5.56. A 10.5-inch pistol variant is also mentioned for those looking to SBR or use a pistol brace.

Quick Summary

The Polish GROT rifle is chambered in .223/5.56 and is fully compatible with standard AR-15 magazines. It can be made 922R compliant by incorporating US-made parts, allowing for a 16-inch barrel length when using the original stock.

Chapters

  1. 00:00922R Compliance and Barrel Lengths
  2. 00:23Caliber and Magazine Compatibility

Frequently Asked Questions

How is the Polish GROT made 922R compliant?

The Polish GROT, particularly the 14.5-inch barreled version, is made 922R compliant by incorporating a sufficient number of US-made parts. This allows it to meet federal regulations when equipped with a stock, effectively extending the barrel length to the legal 16 inches.

What caliber is the Polish GROT, and does it use AR-15 magazines?

Yes, the Polish GROT is chambered in .223/5.56 caliber. It is designed to be fully compatible with standard AR-15 magazines, offering commonality with a widely available ammunition and feeding platform.

What are the barrel length options for the Polish GROT?

The Polish GROT is available in different barrel lengths, including a 10.5-inch pistol version suitable for SBR configurations or pistol braces, and a 14.5-inch version that can be made 922R compliant for use with a stock.

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