K&M M17S Bullpup First Shots

Published on August 23, 2014
Duration: 20:51

This guide details the field stripping process for the K&M M17S bullpup rifle, highlighting its simple design and use of AR-15 components. The process involves removing two captive pins to separate receivers and access the bolt carrier group. The speaker, with high authority, notes the rifle's robust construction and ease of maintenance.

Quick Summary

The K&M M17S bullpup rifle is a modernized iteration of the Bushmaster M17S, featuring an all-aluminum receiver, AR-15 parts compatibility, and a highly regarded adjustable trigger (3-5.5 lbs). It demonstrated 100% reliability over 400 rounds, making it a robust and practical bullpup option.

Chapters

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

Frequently Asked Questions

What are the key improvements in the K&M M17S over the original Bushmaster M17S?

The K&M M17S features an all-aluminum upper and lower receiver, improved cooling ventilation, and a more robust tri-lug bolt design. It also maintains compatibility with many standard AR-15 small parts, springs, and pins, enhancing its practicality and maintenance ease.

How reliable is the K&M M17S bullpup rifle?

During testing, the K&M M17S demonstrated 100% reliability over 400 rounds of 5.56mm ammunition. It performed flawlessly with various magazines, including Magpul P-Mags, Lancer magazines, and an X Products 50-round drum magazine.

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

The K&M M17S has an adjustable trigger mechanism with a pull weight range of 3 to 5.5 lbs. A Lyman digital trigger pull scale measured the trigger at a consistent 3 lbs 3.2 oz, noted as an exceptionally clean break for a factory bullpup.

Can the K&M M17S be fired effectively by left-handed shooters?

While the K&M M17S only has a right-side ejection port, it can be fired left-handed. Brass ejects forward and to the right, making it manageable for lefties as long as they position their face behind the ejection port, though it's not considered ideal.

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