If you shoot a sub-12 ft-lb air rifle and want to take the bark out of every shot without committing to one fixed sound signature, the VIO Modular Air Gun Moderator with Removable Silver Bafflers is one of the most interesting options on the Ballistic Designs shelf. At £24.99, it costs less than most one-piece moderators — and it comes apart.
What Makes the VIO Modular Different
The headline feature is right there in the name: modular. Unlike conventional sealed cans, the VIO uses removable baffles that unscrew from the 122mm body. That means you can strip it down for cleaning, swap or rearrange baffles to change how it shoots, and replace individual parts rather than the whole unit. For a 3D-printed product, that’s a genuinely practical design decision — print layering is kept strong where it matters, and everything that wears can be renewed.
Fitment is a standard 1/2 UNF thread, which covers the vast majority of UK air rifles and many airguns fitted with a half-inch UNF muzzle. At 122mm long it stays compact on the barrel — no club-like nose weight shifting your balance point.
Build Quality and Materials
Printed in matte black polymer, the body has the clean, even layer lines you’d expect from a well-tuned 3D printer, and the vent-hole pattern along the tube is neat and consistent. The removable baffles slot and thread together positively with no rattle once assembled. Being polymer, it’s light — a real advantage on lighter sporter-style rifles where a heavy metal moderator noticeably drags the muzzle down.
Performance in Use
On the bench, the VIO does exactly what a good airgun moderator should: it takes the sharp crack out of the report and leaves a softer, lower thump. The perforated baffle design gives the air somewhere to expand, and because you can reconfigure the baffles, you can experiment to find the quietest arrangement for your rifle. It’s also a full airgun-legal accessory for 18+ shooters, and it keeps your rifle far more pleasant to shoot at home or at a range where noise matters.
Who It’s For
If you want a light, compact, affordable moderator and you like the idea of being able to service and reconfigure it yourself, the VIO modular is an easy recommendation at £24.99. If you’d rather set and forget, it still works perfectly well as a conventional can — the modularity is there when you want it.
Verdict: clever, light and genuinely useful. Check the VIO Modular Air Gun Moderator on the Ballistic Designs shop — it’s in stock and dispatched from their UK studio.