CMMG MK3 DISSENT .308

Published on December 19, 2024
Duration: 19:12

This review of the CMMG MK3 DISSENT in .308 Winchester focuses on its performance during rapid-fire drills, specifically the 'build drill'. The presenter highlights the rifle's significant recoil impulse, the effectiveness of the Aimpoint CompM4 optic, and the surprising lack of heat transfer to the handguard despite rapid firing. Initial impressions suggest it's a powerful and fun platform, though the bolt catch is noted as stiff.

Quick Summary

The CMMG MK3 DISSENT in .308 Winchester is a powerful and fun rifle, though it exhibits significant recoil that requires proper technique to manage. Its handguard surprisingly stays cool even during rapid fire, and the Aimpoint CompM4 optic performs reliably. Initial impressions highlight its crisp trigger and beefy controls, with a note on the stiff bolt catch.

Chapters

  1. 01:33Need for Energy in .308
  2. 01:43Aimpoint CompM4 Mounting Simplicity
  3. 01:58Side Folder Mechanism
  4. 02:01Adjustable Stock Feature
  5. 02:31Thoughtful Design Features
  6. 03:05Excitement for the .308 DISSENT
  7. 03:23The 'Anti-Car' Nickname
  8. 04:01Short Barrel, Big Bullet Dynamics
  9. 04:1120-Round Magazine Capacity
  10. 04:41Loading .308 Ammunition
  11. 04:53First Shots with CMMG MK3 DISSENT .308
  12. 05:17Shooting at XCAL Tactical Range
  13. 05:30First Shot Impression
  14. 05:39Recoil Assessment
  15. 06:00Clear and Ready
  16. 06:01Adjusting the Aimpoint Optic
  17. 06:34Recoil Without Handguard Support
  18. 06:47Aimpoint CompM4 Durability
  19. 07:18Second Shot Impression
  20. 07:26Optic Adjustments Complete
  21. 07:40Build Drill with .308
  22. 08:00Attempting Press Check
  23. 08:09Build Drill with CMMG MK3 .308
  24. 08:23Build Drill Results
  25. 08:41Improving Build Drill Time
  26. 09:02Testing Manhood with .308 Speed
  27. 09:34Post-Drill Observation
  28. 09:41Handguard Temperature
  29. 09:58Move and Shoot Drill
  30. 10:06Move and Shoot Time: 294
  31. 10:15Second Move and Shoot Attempt
  32. 10:24Group Tightness vs. Speed
  33. 10:41Double Alphas Achieved
  34. 10:43Movement and Shooting Practice
  35. 11:02Post-Movement Drill
  36. 11:04Bolt Catch Stiffness
  37. 11:14Enjoyment of Shooting
  38. 11:22Recoil Comparison: .308 vs. 5.56
  39. 11:36David's Turn to Shoot
  40. 11:41Build Drill for David
  41. 12:05David's Build Drill
  42. 12:11Feeling of Doing Damage
  43. 12:22Future Plans: Ballistics Dummies & Steel
  44. 12:33CMMG MK3 DISSENT Firepower
  45. 12:40Aimpoint Optic Reliability
  46. 12:52Optic Retention
  47. 13:01David's Second Build Drill (5 Shots)
  48. 13:15Safety Concerns with Speed
  49. 13:35David's Recoil Impulse Feedback
  50. 13:55Riding the Recoil
  51. 14:02David's Build Drill Time: 216
  52. 14:22Bolt Release Stiffness Confirmation
  53. 14:40David's Target Results
  54. 14:51Anticipating Recoil
  55. 15:08Recoil Affecting Cheek Weld
  56. 15:15Recoil Management Takes Practice
  57. 15:47Comparison to Regular AR Handling
  58. 15:50Request for Another Build Drill
  59. 15:54Rifle Weight Observation
  60. 16:00Stock Adjustment
  61. 16:11Attempting to Beat Build Drill Time
  62. 16:32New Build Drill Time: 170
  63. 16:44Improved Build Drill Time: 151
  64. 16:49Target Accuracy with 151 Time
  65. 16:56Enjoyment of Commanding the Rifle
  66. 17:07Final Build Drill Attempt
  67. 17:14Fastest Build Drill Time: 149
  68. 17:21First Impressions: CMMG MK3 .308
  69. 17:34The 'Anti-Car' Dub Confirmed
  70. 17:36Future Full Review Plans
  71. 17:42Long Range Testing at The Pines
  72. 17:47Shooting Things to Make Them Boom
  73. 17:53Overall First Impression: Fun Beast
  74. 18:01Cool Features
  75. 18:03Trigger Quality
  76. 18:11Oversized Controls vs. Safety
  77. 18:19Control Ergonomics
  78. 18:23Bolt Catch Stiffness Revisited
  79. 18:35Surprise at Handguard Temperature
  80. 18:37Absence of Muzzle Brake
  81. 18:45Blast Deflector Function
  82. 18:51Future Muzzle Brake Addition
  83. 18:57Overall Positive Impression
  84. 19:00First Shots: CMMG MK3

Frequently Asked Questions

What are the initial impressions of the CMMG MK3 DISSENT in .308 Winchester?

First impressions of the CMMG MK3 DISSENT in .308 Winchester are that it's a powerful 'beast' that is fun to shoot. Despite its significant recoil, the rifle handles well, and features like its crisp trigger and oversized controls are praised, though the bolt catch is noted as stiff.

How does the recoil of the CMMG MK3 DISSENT .308 compare to other rifles?

The recoil of the CMMG MK3 DISSENT in .308 Winchester is described as substantial, feeling like a 'bull' compared to a standard 5.56/.223 AR-15. Shooters need to manage this impulse carefully for accuracy, especially during rapid-fire drills.

What optic was used on the CMMG MK3 DISSENT .308, and how did it perform?

An Aimpoint CompM4 optic was used on the CMMG MK3 DISSENT .308. It performed reliably, with its mounting system proving simple and robust enough to handle the .308 recoil without any issues or loosening.

Are there any ergonomic concerns with the CMMG MK3 DISSENT .308?

The CMMG MK3 DISSENT .308 features nice, beefy controls like the magazine release. However, the bolt catch is noted as being quite stiff, requiring significant effort to operate. The safety selector is also considered a bit undersized by the reviewer.

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