Maskas Precision Sig P365 XXL Slide and Barrel

Published on July 13, 2024
Duration: 35:27

This video details the installation and performance testing of a Mascus Precision 4.1-inch slide and barrel for the Sig P365 platform. The upgrade aims to improve ballistic performance, recoil impulse, and shooting comfort while maintaining the P365's slim profile. Testing includes live-fire evaluations with various ammunition types and velocity measurements compared to factory barrels.

Quick Summary

The Mascus Precision 4.1-inch slide and barrel upgrade for the Sig P365 enhances performance by providing full ballistic potential for 9mm ammunition, similar to a 4-inch handgun. This upgrade can also reduce felt recoil and improve accuracy through a slower slide velocity and increased sight radius, making the firearm more comfortable and effective.

Chapters

  1. 00:01Introduction: Sig P365 Variants
  2. 00:13Introducing the 4-inch Barrel and Slide
  3. 00:23History of the Sig P365 Customization
  4. 01:14Ballistic Considerations: Barrel Length
  5. 01:56Sig P365 Fire Control Unit Concept
  6. 02:06Mascus Precision Slide and Barrel Introduction
  7. 02:27Mascus Precision Slide Features
  8. 02:34Angry Bear Sights Overview
  9. 03:11Mascus Precision Barrel Details
  10. 03:46Chamber Fitment Test
  11. 04:07Planned Ballistics Testing
  12. 05:07Anticipation for Range Performance
  13. 05:49Benefits of the 4-inch Setup
  14. 06:34Range Warm-up: Sig P365 XL
  15. 07:15Swapping to the XXL Slide
  16. 08:03Shooting the XL Slide
  17. 08:08Shooting the 4.1-inch XXL Slide
  18. 08:38Gains from a Longer Slide
  19. 09:10Testing on X Macro Grip
  20. 09:42Ammunition Reliability Test Setup
  21. 10:30Ammunition Test Protocol
  22. 10:48Norma 65gr Frangible Test
  23. 11:21Federal 70gr Lead-Free Test
  24. 11:45Hornady American Gunner 115gr JHP Test
  25. 12:07Blazer 115gr Aluminum Case Test
  26. 12:47PMC SFX 124gr JHP Test
  27. 13:13Federal HST 124gr LE Test
  28. 14:45Federal Syntech PCC 130gr Test
  29. 15:36Federal Syntech Defense 138gr Test
  30. 16:09Dry Firing Considerations
  31. 16:56PPU Defense 147gr Hollow Point Test
  32. 17:35Ammo Inc 165gr Steel Case Test
  33. 18:14Testing Sights and Trigger Control
  34. 18:50Spinner Target Test
  35. 19:20Browning 115gr on Spinner
  36. 20:29Practical Accuracy Test Setup
  37. 20:38Sig 365 Ammo for Accuracy Test
  38. 20:48Accuracy Test with Sig 365 Ammo
  39. 21:14Sight Picture and Aiming
  40. 22:11Velocity Difference Testing
  41. 22:45Chronograph Setup and Baseline
  42. 22:48Sig 365 SAS 3.1" Ported Barrel Velocity
  43. 23:57Sig 365 Ammo Velocity (SAS)
  44. 24:42Non-Ported 3.1" Barrel Velocity
  45. 25:50Sig 365 Ammo Velocity (3.1" Non-Ported)
  46. 26:29Sig P365 XL 3.7" Barrel Velocity
  47. 27:20Sig 365 Ammo Velocity (XL)
  48. 28:01Mascus Precision 4.1" Barrel Velocity
  49. 28:10Browning Ammo Velocity (4.1" Barrel)
  50. 29:00Sig 365 Ammo Velocity (4.1" Barrel)
  51. 30:09Data Summary and Value Proposition
  52. 30:35Reasons for the Upgrade
  53. 31:04Aesthetics and Comfort
  54. 31:14Full-Size Performance in a Slim Package
  55. 32:36Holster Considerations
  56. 33:13Training with the Longer Slide
  57. 34:12Final Impressions and Conclusion
  58. 34:49Call to Action and Nerd Outro

Frequently Asked Questions

What are the benefits of installing a Mascus Precision 4.1-inch slide and barrel on a Sig P365?

The Mascus Precision 4.1-inch slide and barrel upgrade for the Sig P365 aims to provide full ballistic performance for 9mm ammunition, similar to a 4-inch handgun. It can also lead to a gentler recoil impulse due to a slower slide velocity, making the firearm more comfortable to shoot and potentially improving accuracy.

How does a longer barrel affect the Sig P365's performance?

A longer barrel, like the 4.1-inch Mascus Precision option, can increase muzzle velocity for 9mm rounds, ensuring better terminal ballistics. It also increases the sight radius, which aids in aiming, and the added mass can slow the slide cycle, reducing felt recoil and making follow-up shots easier.

Is the Mascus Precision P365 slide compatible with standard parts?

Yes, the Mascus Precision 4.1-inch slide is designed to work with standard Sig P365 recoil spring assemblies. It also features aggressive texturing for easier manipulation and is compatible with red dot sights, offering enhanced modularity for the P365 platform.

What kind of ammunition performance can be expected with the Mascus Precision 4.1-inch barrel?

Testing indicates that the 4.1-inch Mascus Precision barrel achieves higher velocities compared to shorter factory Sig P365 barrels, bringing 9mm ammunition closer to its optimal performance potential. This can result in more consistent terminal ballistics for defensive rounds.

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