The core design allows the gases to flow forward through the moderator.  This means that both models offer a similar level of suppression.

The MK.1 is slightly quieter (1-2 dB) but is primarily designed for those who prefer the aesthetics of an "over barrel" moderator.

Technical Specifications

*a reduction of 10dB is equivalent to 'half as loud' and 1/3rd of the pressure on the eardrum. Follow the link BELOW to a website explaining how the decibel system works

The A.R.M.O.U.R. ​range of moderators is available direct from us and from various dealers across the UK.

Please contact us to find out more.

If you are an RFD and are interested in becoming a stockist please contact us. 

Below you can see a graphical comparison of the shot frequency between an un-suppressed shot and an A.R.M.O.U.R. MK.I suppressed shot. (Ruger 10/22  using Remington .22LR Subsonic rounds).

A.R.M.O.U.R. MODERATORS

The Ancillary Rimfire  MOno-core Universal Rifle moderator series.

​​A.R.M.O.U.R. ​MK.1 - £155        A.R.M.O.U.R. ​EOB - £100  

Below are some reviews of the  A.R.M.O.U.R. MK.I  

IPO Registered Designs

Reduces muzzle report by 12 - 14 dB* at the muzzle down to 77 dB** (Comparable to average radio or TV-audio levels).

** This may vary depending on firearm & ammunition used, environmental conditions and sound testing equipment used.

Hear it in action!  

(No video trickery or sound adjustment)

​​​Both Moderators share the following specs...


Proofed for all Rimfire Calibres.

Comprises of only two component parts.

Accommodates heavy barrels up to .920".

Available in a 1/2 UNF and 1/2 UNEF threads (specials on request).

Type 2 Hard Anodised Aluminium 6082 construction