The Griffin Armament MK2 Lower

Published on April 30, 2025
Duration: 2:43

This review of the Griffin Armament MK2 Lower receiver highlights its ambidextrous features, including the audible safety selector, functional bolt release, and ambidextrous magazine release/bolt catch. While the flared magazine well is noted as a positive, the included Griffin grip is considered too slim by the reviewer. Criticisms include the lack of a staked castle nut, indicating a potential QC oversight, and the Griffin stock's tendency to detach easily, along with its non-adjustable QD sling mount points which are perceived as a durability concern.

Quick Summary

The Griffin Armament MK2 Lower receiver offers fully ambidextrous controls, including an audible safety, functional bolt release, and an ambidextrous magazine release/bolt catch. It also features a flared magazine well. However, criticisms include a lack of a staked castle nut, a slim grip, and a stock that can detach easily with fixed, plastic QD sling mounts.

Chapters

  1. 00:00Ambidextrous Lower Receiver Overview
  2. 00:04Ambi Safety Selector
  3. 00:10Bolt Release Functionality
  4. 00:14Ambi Mag Release / Bolt Catch
  5. 00:36Flared Magazine Well
  6. 00:40Grip Criticism
  7. 00:59Castle Nut QC Issue
  8. 01:21Griffin Stock Criticism
  9. 01:57Stock Drainage Features
  10. 02:13Stock QD Mount Issues

Frequently Asked Questions

What are the key ambidextrous features of the Griffin Armament MK2 Lower receiver?

The Griffin Armament MK2 lower receiver is fully ambidextrous, featuring an audible safety selector, a functional bolt release on both sides, and an ambidextrous magazine release that also serves as the bolt catch. These controls are designed for intuitive operation from either side of the firearm.

What are the main criticisms of the Griffin Armament MK2 Lower receiver and its included components?

Criticisms include the lack of a staked castle nut, suggesting a potential quality control issue. The included Griffin grip is considered too slim by some users. The Griffin stock is problematic due to its tendency to detach easily and its non-adjustable, plastic QD sling mount points, which are seen as a durability concern.

Does the Griffin Armament MK2 Lower receiver have any unique design features?

Yes, the Griffin Armament MK2 lower receiver features a slightly shorter and flared magazine well to facilitate quicker magazine changes. The included Griffin stock also has drainage holes, which could be beneficial if the firearm is exposed to water.

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