Stern Defense 45ACP AR-15 Conversion Kit Review

Published on February 19, 2020
Duration: 15:12

The Stern Defense AR-45 conversion kit transforms a standard AR-15 lower into a .45 ACP pistol caliber carbine using a dedicated upper and magwell adapter. Tested with over 1,500 rounds, it demonstrated exceptional reliability, even with hollow points. Accuracy at 50 yards was respectable, with groups ranging from 1.25 to 3 inches.

Quick Summary

The Stern Defense AR-45 conversion kit transforms an AR-15 into a .45 ACP pistol caliber carbine. Tested with over 1,500 rounds, it showed zero malfunctions, even on full-auto. It uses S&W M&P 45 magazines and achieved accuracy groups of 1.25-3 inches at 50 yards.

Chapters

  1. 00:00Introduction & Shooting Montage
  2. 00:31Product Overview: Stern Defense AR-45 Kit
  3. 01:03Reliability: 1500+ Rounds Tested
  4. 02:28Barrel & Muzzle Device Details
  5. 03:45Handguard & Upper Receiver Features
  6. 05:28Bolt & Buffer System Explained
  7. 07:18Magwell Adapter & Magazine Compatibility
  8. 09:33Hollow Point Ammunition Test
  9. 11:04Final Thoughts: Fun & Reliable
  10. 12:57Accuracy Testing at 50 Yards

Frequently Asked Questions

What is the Stern Defense AR-45 conversion kit?

The Stern Defense AR-45 conversion kit allows a standard AR-15 lower receiver to fire .45 ACP ammunition. It includes a specific upper receiver and a magwell adapter, converting the platform into a pistol caliber carbine.

How reliable is the Stern Defense AR-45 conversion kit?

The kit demonstrated exceptional reliability, with the reviewer testing over 1,500 rounds, including many on full-auto, experiencing zero malfunctions. This suggests a robust and dependable system for .45 ACP AR-15 conversions.

What magazines does the Stern Defense AR-45 kit use?

The Stern Defense AR-45 conversion kit is designed to use Smith & Wesson M&P 45 magazines. Glock .45 ACP or 10mm magazines are too wide to fit within a standard AR-15 magwell.

What are the accuracy results for the Stern Defense AR-45 kit?

Accuracy testing at 50 yards showed respectable performance, with group sizes ranging from 1.25 inches to 3 inches. This was achieved using various .45 ACP ammunition types, including FMJ and hollow points.

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