K&M M17S Bullpup First Shots

Published on August 23, 2014
Duration: 20:51

The K&M Arms M17S is a modernized bullpup rifle built from the ground up, improving on the original Bushmaster design. It features an all-aluminum receiver, AR-15 compatibility for small parts, and a superb 3-pound adjustable trigger. While heat retention remains a concern, its robust construction and 100% reliability over 400 rounds make it a high-quality, simple firearm.

Quick Summary

The K&M Arms M17S is a modernized bullpup rifle featuring an all-aluminum receiver and AR-15 parts compatibility. It boasts a superb, adjustable 3-pound trigger but retains heat in its metal body after sustained firing, requiring a vertical grip.

Chapters

  1. 00:00Introduction & Bullpup History
  2. 02:20K&M M17S Design Overview
  3. 05:10Heat Management & Ergonomics
  4. 07:15Field Stripping & Internal Components
  5. 09:05Trigger Mechanism & Controls
  6. 12:40Trigger Pull Test & Magazine Compatibility
  7. 16:30Left-Handed Shooting Assessment
  8. 17:45Conclusion & Pricing

Frequently Asked Questions

What are the key improvements in the K&M Arms M17S compared to the original Bushmaster M17S?

The K&M M17S features an all-aluminum upper and lower receiver, improved cooling with increased ventilation, and a superior adjustable trigger. It also utilizes standard AR-15 small parts, enhancing compatibility and maintenance.

What is the trigger pull weight on the K&M Arms M17S?

The K&M M17S has an adjustable trigger mechanism that can be set between 3 to 5.5 pounds. A test confirmed a consistent 3-pound pull, noted as one of the best factory bullpup triggers encountered.

Does the K&M M17S accept standard AR-15 magazines?

Yes, the K&M M17S accepts standard AR-15 magazines, including Magpul P-Mags and Lancer magazines. It also accepts AR-15 pistol grips that do not have a high backstrap.

What is the main drawback of the K&M Arms M17S?

A notable drawback carried over from the original design is heat retention. The all-metal body becomes very hot to the touch after approximately 100 rounds, making a vertical grip advisable.

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