NEW: MK Machining Bullpup Chassis MK2.6 Custom Build & Test

Published on February 22, 2026
Duration: 16:13

This guide details the installation of the MK Machining Bullpup Chassis MK2.6 onto a bolt-action rifle. It covers unpacking, trigger installation, barreled action seating, linkage setup for trigger and safety actuation, and final assembly of the chassis components. The process requires careful attention to alignment and proper torque for secure installation.

Quick Summary

The MK Machining Bullpup Chassis MK2.6 transforms bolt-action rifles like the Remington 700 and Tikka into a bullpup configuration. It includes a modified Timney Calvin Elite trigger and requires careful installation of linkages for trigger and safety actuation. While compatible with 16-inch barrels, suppressor clearance may be a consideration due to the fore end design.

Chapters

  1. 00:07Introduction to MK Machining Bullpup Chassis MK2.6
  2. 00:50Unboxing and Included Components
  3. 02:34Barreled Action Installation Progress
  4. 03:09Trigger and Safety Linkage Setup
  5. 04:45Action Screw and Shim Installation
  6. 05:08Reinstalling Side Plates and Buttstock
  7. 06:19Final Assembly and Component Count
  8. 06:36Scope Selection and Magazine Compatibility
  9. 07:06Range Day and Zeroing Process
  10. 07:13Shooting Experience at 100 Yards
  11. 08:37Ammunition and Recoil Discussion
  12. 09:19Accuracy at 100 Yards and 400 Yards
  13. 10:17Shooting at the Industrial Yard
  14. 10:45Ergonomics of Bolt Operation
  15. 11:12Curtis Actions and Forward Swept Handles
  16. 11:34Trigger Scan Testing
  17. 12:25Trigger Scan Results and Analysis
  18. 13:33Suppressor Clearance Considerations
  19. 14:25Feeding Reliability and Chassis Dynamics
  20. 15:01Viewer Engagement and Build Ideas

Frequently Asked Questions

What is the MK Machining Bullpup Chassis MK2.6 designed for?

The MK Machining Bullpup Chassis MK2.6 is designed for bolt-action rifles, specifically compatible with Remington 700 short and long actions, and a Tikka version is also available. It transforms a conventional rifle into a bullpup configuration.

What trigger is included with the MK Machining Bullpup Chassis MK2.6?

The chassis comes with a specially modified Timney Calvin Elite trigger. This trigger is designed to work with the bullpup's unique mechanics, utilizing control arms and linkage systems for actuation.

What are the key steps for installing the MK Machining Bullpup Chassis MK2.6?

Installation involves unpacking components, installing the trigger on the barreled action, seating the action in the chassis, connecting trigger and safety linkages, securing the action with screws, and finally reassembling the chassis components like the buttstock and fore end.

What are the potential issues with suppressor clearance on the MK Machining Bullpup Chassis MK2.6?

The fore end design, particularly the forward ears, can limit clearance for full-diameter suppressors, especially on shorter barrels. A flared or smaller diameter suppressor is more likely to fit without modification.

Related News

All News →

More Gunsmithing & DIY Videos You Might Like

More from Ultimate Reloader

View all →