Source of Silence: Do You Really Need A Booster - Glock Edition

Published on September 10, 2025
Duration: 15:53

This video from SilencerCo, presented by Beaver, investigates the necessity of a suppressor booster on various Glock models when using lightweight suppressors like the Spectre 9. The testing covers Glock 19 Gen 3, 43, 26, and 17 Gen 3, using 115, 124, and 147 grain ammunition, comparing direct thread mounts against booster assemblies. The findings highlight how suppressor weight and firearm design (especially barrel length and action type) impact cycling reliability and ejection patterns, with subcompacts showing particular sensitivity to direct threading.

Quick Summary

Lightweight suppressors on Glocks, especially subcompact models like the 43 and 26, often require a booster assembly for reliable cycling. Direct threading can lead to barrel damage by removing material from the locking shelf due to added weight and leverage.

Chapters

  1. 00:02Introduction: Suppressor Boosters & Glocks
  2. 00:20Testing Methodology: Glock Models & Ammo
  3. 00:51SilencerCo Threaded Barrels
  4. 01:07Glock Barrel Action: Reciprocation & Tilt
  5. 01:23How a Suppressor Booster Works
  6. 02:22Booster Mechanism: Gas Pressure & Effect
  7. 02:45Spectre 9: Lightweight Titanium Suppressor
  8. 03:11Test Platforms: BA M9, Glock 19, 43, 26, 17
  9. 03:27Test 1: Beretta M9 Baseline
  10. 04:38Test 2: Glock 17 Gen 3 (115 Grain)
  11. 05:19Glock 17 Direct Thread (115 Grain) Results
  12. 05:29Glock 17 Booster (124 Grain) Test
  13. 05:47Glock 17 Direct Thread (124 Grain) Test
  14. 06:15Glock 17 Booster (147 Grain) Test
  15. 06:33Glock 17 Direct Thread (147 Grain) Test
  16. 06:56Test 3: Glock 19 Gen 3 (Direct Thread)
  17. 07:36Glock 19 Direct Thread Failure & Theory
  18. 07:45Glock 19 Booster (124 Grain) Test
  19. 08:01Glock 19 Direct Thread (124 Grain) Test
  20. 08:47Glock 19 Booster (147 Grain) Test
  21. 09:01Glock 19 Direct Thread (147 Grain) Test
  22. 09:33Glock 19 Direct Thread Recommendation: No-Go
  23. 09:36Test 4: Glock 26 Booster (115 Grain)
  24. 09:52Glock 26 Direct Thread (115 Grain) Test
  25. 10:22Glock 26 Direct Thread Failure & Barrel Length
  26. 10:30Glock 26 Booster (124 Grain) Test
  27. 10:43Glock 26 Direct Thread (124 Grain) Test
  28. 11:12Glock 26 Booster (147 Grain) Test
  29. 11:27Glock 26 Direct Thread (147 Grain) Test
  30. 11:56Glock 26 Direct Thread Recommendation: No-Go
  31. 12:03Test 5: Glock 43 Booster (115 Grain)
  32. 12:18Glock 43 Direct Thread (115 Grain) Test
  33. 12:34Glock 43 Direct Thread Malfunction & Barrel Wear
  34. 13:04Glock 43 Booster (124 Grain) Test
  35. 13:24Glock 43 Direct Thread (124 Grain) Test
  36. 13:55Glock 43 Direct Thread Recommendation: No-Go for Subcompacts
  37. 14:00Glock 43 Booster (147 Grain) Test
  38. 14:14Glock 43 Direct Thread (147 Grain) Test
  39. 14:44Subcompact Barrel Lockup & Material Removal
  40. 15:07Rundown: What Worked & What Didn't
  41. 15:12Glock 17 Summary
  42. 15:26Glock 26 Summary
  43. 15:31Glock 43 Summary
  44. 15:40Future Testing & Viewer Suggestions

Frequently Asked Questions

Why do some handguns need a suppressor booster?

A suppressor booster is often needed for lightweight suppressors on handguns with tilting barrel actions or those sensitive to added weight. It uses gas pressure to push the suppressor forward, aiding in the unlocking and cycling of the firearm, which can be disrupted by the suppressor's mass.

What is the 'parachute effect' in suppressors?

The 'parachute effect' refers to how expanding gases traveling through a suppressor can create forward pressure. This pressure can help push the suppressor away from the barrel, assisting the firearm's cycling mechanism, especially when a booster is used to facilitate this movement.

Can direct threading a suppressor damage a Glock barrel?

Yes, particularly on subcompact Glock models like the 43 and 26, direct threading a suppressor can lead to material removal from the barrel's locking shelf over time. This is due to the added weight and leverage, which can compromise the barrel's lockup and structural integrity.

Does ammunition grain weight affect suppressor reliability on Glocks?

Yes, ammunition grain weight plays a role. Heavier rounds (e.g., 147 grain) generally provide more energy, which can sometimes help a firearm cycle with a suppressor, especially if it's borderline. However, even with heavier ammo, lightweight suppressors on shorter-barreled Glocks often still benefit from a booster.

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