The MK12 Mod M “MINI” by Centurion Arms

Published on January 17, 2026
Duration: 7:17

This guide details the construction of the Centurion Arms MK12 Mod M 'MINI', a compact variant of the renowned MK12 platform. Drawing on the expertise of Monty LeClair, a 20-year SEAL sniper, the process involves using a 12.5-inch barrel, reduced buffer tube and stock, a PRI top rail, and a Trajectory Arms Ops Inc. style suppressor. The focus is on replicating the precision and aesthetic of the original MK12 in a more manageable size.

Quick Summary

The Centurion Arms MK12 Mod M 'MINI' is a compact variant featuring a 12.5-inch 5.56 NATO barrel, reduced stock, PRI top rail, and a Trajectory Arms Ops Inc. style suppressor. Developed with insights from Monty LeClair, a 20-year SEAL sniper, it aims to replicate the precision of the original MK12 in a smaller package.

Chapters

  1. 00:08Introduction to Centurion Arms & Monty LeClair
  2. 00:37Monty LeClair's Background & MK12 Affinity
  3. 01:30MK12 Development History
  4. 02:51The MK12 Mod M 'MINI' Project
  5. 03:40Technical Specs of the MINI
  6. 05:08Conclusion and Future Testing

Frequently Asked Questions

What are the key components of the Centurion Arms MK12 Mod M 'MINI' build?

The MK12 Mod M 'MINI' features a 12.5-inch barrel, a reduced size buffer tube and stock, a PRI top rail, and a Mod 2 Ops Inc. style suppressor by Trajectory Arms. It's designed as a compact version of the MK12 Mod 0.

Who is Monty LeClair and what is his expertise regarding the MK12 rifle?

Monty LeClair is a 25-year Navy veteran with over 20 years as a SEAL sniper. He has extensive real-world experience with the MK12 platform and is known for producing highly clone-correct MK12 rifles.

What makes the MK12 Mod M 'MINI' different from the original MK12?

The 'MINI' is a more compact variation of the MK12 Mod 0 aesthetic, utilizing a shorter 12.5-inch barrel and a reduced stock configuration while aiming to maintain the original's precision and functionality.

What is the significance of original chamber reamers and specs in MK12 builds?

According to Monty LeClair, using original chamber reamers and military specifications is crucial for achieving true clone-correctness on MK12 builds, ensuring authenticity to the original military contracts.

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