Brethren Armament Company Update

As we usher in a new year, Brethren Armament LLC has experienced some changes over the Christmas Holidays. We would like to share these with you and your company.

  1. Quinn is no longer an officer of Brethren Armament LLC. Quinn is venturing off into his own projects and we wish him the best of luck.
  2. Kyle McIntosh has been voted in as President of Brethren Armament LLC. Kyle has been VP since the founding and will continue with all duties within Brethren Armament LLC.
  3. We welcome Doug Hatch as our new Vice President. Doug has been with Brethren Armament LLC for a while now and is ready to step into his new role.

We look forward to a great 2017 working directly with all of our Vendors, Contractors, Retailers, Suppliers and Media Contacts.

Please feel free to reach out to us if necessary and we look forward to working with you as we begin the new year.

View the Brethren Armament 2017 Original Signed Notice (pdf)

Kyle McIntosh
Brethren Armament LLC

Doug Hatch
Vice President
Brethren Arament LLC

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Improved Trigger Group, Hammer Buffer


Trigger Group (lower) replacement device for Heckler & Koch (HK) Roller Lock Firearms

  • Single component houses all trigger components, provides interface for pistol grip, and mounts to the firearm via a rear push pin and the trigger group mounting shelf behind the magazine well.
  • Ar-15 style interface for attachment of pistol grip.

Hammer Buffer

  • Curved hammer surface maintains contact with bolt carrier group (BCG) during rearward motion of bolt carrier.
  • Rearward bolt carrier group force countered with:
    • Use of a pivoting strut, spring and heim joint assembly
    • Torsion springs
    • Constant Force Coil Spring
    • Dual captive Recoil spring assembly

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Hammer Buffer, Design Summary


The firearm from which this invention was created was originally designed and produced in 1957; The CETME Model A. It was later procured, updated, and manufactured by the German Company Heckler & Koch, with the most famous variants being the G3 and MP5. The G3 in particular was utilized world-wide, and is the third most produced firearm in history.

Although these firearms have decades of proven effectiveness, there have been inherent design drawbacks since the original prototypes. The most notable being the lack of “fine tuning” of the firing cycle, and poor ergonomics/performance from the trigger mechanism. These drawbacks however contained the inspiration and part of the solution to both issues. It is unknown how much the original designers recognized the mechanics at play, if at all. It is clear that they were never pursued further by either parent company, and the designs themselves have faded into obsolescence.



Roller Delayed Blowback Firing Cycle

Roller Delayed Blowback Firing Cycle


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