CMMG Mk4 224 Valkyrie AR Rifle Review

Published on April 5, 2018
Duration: 24:05

This review of the CMMG Mk4 DTR in 224 Valkyrie highlights its capabilities for long-range precision shooting within the standard AR-15 platform. The rifle features a 24-inch stainless steel barrel with a 1:7 twist, a rifle-length gas system, and a CMMG SV muzzle brake for recoil mitigation. The review emphasizes the 224 Valkyrie's impressive ballistics, including its extended supersonic range and reduced wind drift and bullet drop compared to other AR-15 calibers. The build quality, including the Magpul PRS stock and Rise Armament trigger, contributes to its accuracy and shootability.

Quick Summary

The CMMG Mk4 DTR in 224 Valkyrie is a high-performance AR-15 platform rifle designed for long-range precision. It features a 24-inch barrel, low recoil, and superior ballistics, maintaining supersonic velocity past 1,300 yards with less wind drift and bullet drop than many competing calibers.

Chapters

  1. 00:00Introduction: CMMG Mk4 224 Valkyrie
  2. 00:57CMMG's Role in Modern Calibers
  3. 01:32The 224 Valkyrie Cartridge
  4. 02:21Meaning of Valkyrie & Ballistics
  5. 02:44Rifle Aesthetics and Finish
  6. 02:5924-inch Barrel for Optimal Performance
  7. 03:17CMMG Quality and Innovation
  8. 03:33Price Point and Value
  9. 03:56Chamber Check and Barrel Length Discussion
  10. 04:16Barrel Specifications: Twist Rate and Material
  11. 04:38Overall Rifle Length and Purpose
  12. 04:56CMMG SV Muzzle Brake
  13. 05:07Rifle-Length Gas System
  14. 05:23CMMG 14-inch Freefloat Handguard
  15. 05:28Upper and Lower Receiver Material
  16. 05:32Ambidextrous Charging Handle and Controls
  17. 05:49Magpul PRS Stock Features
  18. 06:01Ammunition Pistol Grip
  19. 06:14Rise Armament Trigger
  20. 06:28Leupold VX-3i LRP Optic
  21. 06:56American Defense Manufacturing Mounts
  22. 07:00Sighting In and Ammunition Choice
  23. 07:07First 3-Shot Group Results
  24. 07:13Five-Shot Group Accuracy
  25. 07:20224 Valkyrie vs. 5.56 NATO Case Comparison
  26. 07:49Components for 224 Valkyrie Conversion
  27. 08:11Magazine Differences: 6.8 SPC vs. 5.56
  28. 08:43Using 5.56 Magazines Successfully
  29. 08:586.8 SPC as a Standard Cartridge
  30. 09:03ASC Magazines
  31. 09:22Caliber Comparisons: 224 Valkyrie, 22 Nosler, 5.56
  32. 09:28Caliber Comparisons: 6.5 Grendel, 6.5 Creedmoor
  33. 09:40224 Valkyrie Matches 6.5 Creedmoor Ballistics
  34. 09:55224 Valkyrie in Precision Rifle Championships
  35. 10:01Supersonic Velocity and Bullet Stability
  36. 10:11Supersonic Range Comparison
  37. 11:04Recoil Energy Comparison
  38. 11:23Benefits of Low Recoil
  39. 11:30Energy, Wind Drift, and Bullet Drop at 1000 Yards
  40. 11:41Federal Premium Ballistics Data
  41. 13:05Anticipation for 224 Valkyrie Testing
  42. 13:14Thousand-Yard Range Experience
  43. 14:23Live Fire at 1000 Yards
  44. 15:26Impressive Performance of the Round
  45. 16:08Key Takeaways: Lack of Recoil
  46. 16:25Advantage of Low Recoil on Scope View
  47. 16:44Sub-MOA Accuracy at Distance
  48. 17:06AR-15 Platform Advantages
  49. 17:2024-inch Barrel and Maneuverability
  50. 17:28Rapid Shooting and Target Acquisition
  51. 17:38Transitioning Between Distances
  52. 18:02Bullet Weight and Capacity
  53. 18:12Available Bullet Weights and Types
  54. 18:24Ammunition Pricing and Availability
  55. 18:34SAAMI Specs and Ammunition Expansion
  56. 18:42Industry Adoption of 224 Valkyrie
  57. 18:51Comparison with 6.5 Grendel and 6.5 Creedmoor
  58. 19:10224 Valkyrie's Versatility
  59. 19:19Pros: Ballistics, Accuracy, Availability
  60. 19:43Use Cases: Hunting, Practice, Long Range
  61. 20:01Ammunition Cost Considerations
  62. 20:12CMMG Quality and Features
  63. 20:28Cons: Magazine and Ammunition Availability
  64. 21:02Rifle Price Point and Value Proposition
  65. 21:32Overall Recommendation
  66. 21:54Reliability and Sponsorship
  67. 22:04Personal Interest in Acquiring the Rifle
  68. 23:00Final Thoughts on CMMG 224 Valkyrie

Frequently Asked Questions

What makes the 224 Valkyrie cartridge suitable for long-range shooting?

The 224 Valkyrie cartridge excels at long range due to its ability to maintain supersonic velocity past 1,300 yards. This extended supersonic range, combined with superior ballistic coefficients, results in less wind drift and bullet drop compared to many other AR-15 calibers, allowing for greater accuracy at extended distances.

What are the key technical specifications of the CMMG Mk4 DTR in 224 Valkyrie?

The CMMG Mk4 DTR features a 24-inch, 1:7 twist, 416 stainless steel barrel with a salt nitride finish. It utilizes a rifle-length gas system, a 14-inch M-LOK handguard, 7075 T6 aluminum receivers, a Magpul PRS stock, and a Rise Armament trigger. The rifle is designed for optimal performance with the 224 Valkyrie cartridge.

How does the recoil of the 224 Valkyrie compare to other rifle calibers?

The 224 Valkyrie offers significantly reduced recoil, estimated at around 4.35 foot-pounds of energy. This is less than half the recoil of a 6.5 Creedmoor and considerably less than a .308 Winchester. This low recoil allows shooters to maintain sight picture, track bullet trace, and see impacts more easily.

What modifications are needed to convert an AR-15 to 224 Valkyrie?

To convert an AR-15 to 224 Valkyrie, you primarily need to change the barrel to a 224 Valkyrie barrel. You can use your standard AR-15 bolt carrier group, but you'll need a slightly larger bolt, such as a 6.8 SPC bolt. Additionally, 6.8 SPC magazines are recommended for optimal feeding and support of the cartridge.

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