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Sarissa Moderator Core
Sarissa Moderator Core
The Sarissa carries a dimensional envelope of 40x255mm, ~260 grams, with a semi-modular serviceable aluminum-tube design. The same proven principles of air stripping, flow delaying, and sound absorption developed in the Falx and earlier moderators remain but now with more space to take them to the next level of performance. The Sarissa is our quietest moderator to date.
These cores can be installed in any Sarissa and are the latest version. Changing the airflow variant of the core allows the moderator to be adapted for optimal use on vastly different rifles. These cores can also upgrade older moderators to the latest generation core which will have improved performance. While our moderators undergo continuous iteration with many sub versions, the larger revisions (eg Rev.1 Rev2) should be used to determine if a core should be upgraded or not.
Please note, while we try to keep core variants in stock for immediate shipment, some may be built to order, a process which takes two weeks. All designs are considered experimental.
This product is intended for AIRGUN USE ONLY. It is a violation of federal law to use this product in a manner inconsistent with its design intent. More information about the federal court ruling which clarified the legality of airgun moderators within the United States can be found HERE. Local restrictions may still apply. It is the responsibility of the buyer to ensure they are in compliance with all applicable laws.
This item will only be shipped within United States.
Which version is right for me?
It would be absurd to think one moderator design would produce optimized sound attenuation for all rifles, peak performance is achieved by tuning moderators to their hosts. We call the metric for this air and sound served to the moderator, by the host, “Flow Factor.” The information necessary to calculate the flow factor of your host rifle can be found here. Select the moderator with a flow factor which most closely matches your own application, in order to maximize effective sound attenuation and ensure safe operation. Custom bores are available on request, please message us first. All designs are considered experimental.
Standard - Tuned on an FX Crown with a flow factor of 460. Factory configuration w/ extended shroud peak is 288.0
Moderate - Tuned on an FX Crown with a flow factor of 1,111. Factory configuration w/ extended shroud peak is 637.6
High - Tuned on an FX Dreamline with a flow factor of 6,500. Bare muzzle configuration (un-moderated) peak is 3,668.4
Sarissa trace, standard flow rev.1.2, as tested on a shrouded FX Crown .22. Average peak is 37.5. (note traces not to scale)
Simply adding length and stretching the third stage was insufficient to give the Sarissa “enough” of a performance advantage over the already very quiet Falx. A wide variety of 4th stages were developed and tested. Finally, a new damping section was developed, allowing this incredible performance, both in peak and post-peak sound, the muzzle report is about as loud as the hammer slap on the .30 caliber Crown below. This is the quietest airgun shot we’ve ever measured. Period.
Sarissa trace, moderate flow rev.2, as tested on a shrouded FX Crown .30. Average peak is 64.75. (note traces not to scale)
The Sarissa takes our proven concepts, but unleashes them from the size constraints of the Falx. The result was a surprising performance gain. These are the quietest measurements we’ve ever taken at this flow factor by a comfortable margin. Not only is the peak substantially lower, the post-peak-sound has improved significantly as well. The results are quiet enough to be confused with a much less powerful air rifle.
Sarissa trace, high flow rev.2, as tested on an unshrouded FX Dreamline .30. Average peak is 107.8.
This is the power (flow factor) range where size really starts to matter. The Sarissa high flow doesn’t need any qualifiers like “it does an admirable job for its size,” it just does a amazing job flat out. This goes for both cutting the peak and preventing a great deal of post-peak-sound from the air tirading through the diodes.