CSM TRI RAIL HANDGUARD INSTALLATION(H&K MP5 .22LR umarex)

Published on March 31, 2024
Duration: 3:51

This guide details the installation of a CSM Tri-Rail handguard onto a Umarex licensed HK MP5 .22LR. The process involves removing the faux suppressor and original handguard by unscrewing four bolts with a 5/64" Allen key, then sliding on the new handguard and reassembling the front sight and faux suppressor. A crucial step includes remembering to replace the small rubber washer on the barrel.

Quick Summary

To install the CSM Tri-Rail handguard on a Umarex HK MP5 .22LR, first ensure the firearm is unloaded. Remove the faux suppressor, then use a 5/64" Allen key to loosen the four bolts holding the original handguard. Slide off the old handguard, install the new one, reattach the front sight, and secure the new handguard with its bolts. Remember to reinstall the small rubber washer before reattaching the faux suppressor.

Chapters

  1. 00:02Introduction and Product Overview
  2. 00:56Safety Check: Clearing the Firearm
  3. 01:08Removing the Faux Suppressor
  4. 01:23Locating and Loosening Handguard Bolts
  5. 01:54Removing the Front Sight
  6. 02:23Removing the Original Handguard
  7. 02:28Installing the CSM Tri-Rail Handguard
  8. 02:50Reinstalling the Front Sight
  9. 03:05Tightening New Handguard Bolts
  10. 03:16Reinstalling the Faux Suppressor and Washer
  11. 03:37Conclusion and Final Look

Frequently Asked Questions

What tools are needed to install the CSM Tri-Rail handguard on a Umarex HK MP5 .22LR?

The primary tool required for installing the CSM Tri-Rail handguard on a Umarex HK MP5 .22LR is a 5/64" Allen key. This tool is used to loosen and tighten the four bolts that secure the handguard to the firearm's receiver.

What are the key steps for installing the CSM Tri-Rail handguard on an Umarex HK MP5 .22LR?

The installation involves ensuring the firearm is unloaded, removing the faux suppressor, loosening and removing the original handguard's four bolts, sliding off the old handguard, installing the new CSM Tri-Rail handguard, reattaching the front sight, and finally securing the new handguard with its bolts and reinstalling the faux suppressor.

Is there a specific rubber washer to be aware of during the Umarex HK MP5 .22LR handguard installation?

Yes, there is a small rubber washer that is part of the original faux suppressor assembly. This washer is located on the barrel and must be carefully removed and then reinstalled onto the barrel before screwing the faux suppressor back on with the new handguard.

Where are the bolts located for the original handguard on the Umarex HK MP5 .22LR?

The bolts securing the original handguard on the Umarex HK MP5 .22LR are located in four positions. Typically, two bolts are found on the top of the handguard assembly, and the other two are situated on the flanks or sides.

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