Benjamin Marauder Upgrade ~ Here’s a relatively simple and cheap way to significantly improve the performance of a Benjamin Marauder airgun. YouTuber Ted’s Holdover demonstrates the upgrade, which involves installing a $35 piece from Airguns of Arizona called a
Hammer Debounce Device (HDD). (Dead Link 🙁 Airguns of Arizona no longer selling?)
As Ted describes, when the hammer hits the valve release, the hammer often bounces against the valve release a second (or third) time, releasing more air. This extra released air does nothing to help propel the already departed pellet, and is simply wasted.
The Hammer Debounce Device or HDD helps prevents the hammer from hitting the valve repeated times after the initial strike.
- Installing the Marauder Hammer Debounce Device (HDD) – Part I | Airguns of Arizona Blog
- Airgun forum: .22 Mrod with experimental hammer debouncer hits 7.14bar-cc/fpe efficiency