The Mk12 MOD Hop SPR

Published on August 22, 2023
Duration: 16:40

This video details the build and performance of a custom Mk12 Mod Hop SPR rifle, inspired by military designations but with modern enhancements. The presenter, Hop, a firearms instructor with high expertise in custom AR-15 builds, provides a technical breakdown of components, assembly considerations, and accuracy testing. While exceptionally accurate and soft-shooting, the rifle is presented as more of a specialized project than a ruggedized combat platform due to specific tuning and component choices.

Quick Summary

The Mk12 Mod Hop SPR, built by firearms instructor Hop, is a custom AR-15 variant inspired by military designations but optimized for extreme accuracy. It features a 16-inch Ballistic Advantage barrel, Vortex Viper PST Gen II optic, and achieves sub-MOA groups with 77gr ammunition, though its specialized tuning makes it more of a project than a rugged combat rifle.

Chapters

  1. 00:00Introduction to the Mk12 Mod Hop
  2. 01:10Defining the Modern SPR Concept
  3. 03:12Optics: Vortex Viper PST Gen II
  4. 06:37Barrel Choice and Performance
  5. 08:40Gas System and Reliability
  6. 10:26Internal Components and Trigger
  7. 12:32Furniture and Rail Selection
  8. 15:55Conclusion and Practicality

Frequently Asked Questions

What defines a Special Purpose Rifle (SPR) in the context of this video?

An SPR is defined as an accurate 5.56 rifle featuring higher magnification optics than standard combat setups. Its purpose is to enhance precision and effective range while maintaining ammunition commonality with a team's standard issue firearms.

What are the key components of the custom Mk12 Mod Hop SPR build?

The build features a Ballistic Advantage 16-inch .223 Wylde barrel, Vortex Viper PST Gen II 2-10x32 optic, Superlative Arms adjustable gas block, LaRue LAT 13.2 inch M-LOK handguard, and a Schmid 2-stage match trigger.

What were the accuracy results for the Mk12 Mod Hop SPR?

The rifle demonstrated exceptional accuracy, achieving sub-MOA groups at 100 yards using AAC 77gr match ammunition, highlighting the effectiveness of its precision-oriented components and tuning.

What are the pros and cons of the Vortex Viper PST Gen II optic mentioned?

The Vortex Viper PST Gen II 2-10x32 offers good glass quality and reticle design. However, its drawbacks include significant weight and a lack of locking turrets, which can lead to accidental adjustments in the field.

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