If you run a shotgun on the clock, whether that is a 12-bore for clays and competition or an airsoft tri-shot on the skirmish field, you know the problem: the shells are in a pouch on your belt, two movements away from where your hands need to be. The M-LOK Benelli MatchSaver Dual Shell Holder 3D Printed (RA001B) fixes that by putting exactly two shells exactly where you want them, right on the gun itself, and at £9.99 it might be the cheapest upgrade you fit this year.
What you get
This is a 3D-printed dual shell caddy made by Ballistic Designs, the 3D-printed tactical products brand from Visual Shop Ltd. The unit arrives in black PETG HF/CF, a heat-resistant carbon-fibre-filled polymer that shrugs off knocks, solvent wipes and the kind of weather that turns cheaper plastics brittle. The measured footprint is compact at 50 x 62 x 19mm, so it adds function without bulk, and the fine layer lines across the body are a reminder this is a small-batch printed product rather than an injected-mould clone.
The holder ships with two 1:1 scale red shell replicas seated in the cradles, which is a smart touch: you can check the fit, the grip pressure and the visual balance before committing it to a setup. The shells are display pieces for the photo, the product you are buying is the holder itself.
Mounting: M-LOK first, but not only
The headline feature is in the name. Between the two shell cradles, the flat central face carries two counterbored mounting holes aligned for standard M-LOK hardware, so it bolts straight onto any M-LOK rail section on a Benelli-pattern shotgun, an airsoft replica with M-LOK furniture, or anything else with the slot system. Two screws, done. If your gun runs a different rail standard, or you want the caddy on a stock, a receiver side, a plate carrier or a range cart, the same two holes take strong double-sided tape or glue and the holder mounts to any flat surface. That flexibility is the quiet strength of the design.
Retention and handling
Each shell sits in a pair of curved retaining arms that wrap the hull. The fit is tuned the way a MatchSaver should be: tight enough that a shell will not walk out during a hard run, recoil cycle or a face-down drop, but flexible enough that a deliberate hand strips a shell in one clean motion. Because the two shells sit in a slight V, the brass bases present at different angles and your fingers find them without looking. For competition shooters running a side saddle as primary storage, this unit works as the fast-two: the rounds you reach for first under pressure.
Who it is for
Three groups, really. Clay and competition shooters who want reloads on the gun rather than on the belt. Airsoft players running shotgun-class tri-shots on M-LOK stock or handguard furniture. And Benelli owners who like the MatchSaver concept but want a lighter, low-profile polymer take on it. It is also a tidy option for film props, display builds and collection shelves, given the replica shells it comes with.
The usual UK compliance note applies: this is an accessory, sold to buyers aged 18 and over in line with the VCR Act 2006, and it carries no restriction concerns of its own. It holds shells. It holds them well.
Verdict
Simple, cheap, well made. The PETG HF/CF body should outlast the shells you feed through your gun, the M-LOK-first mounting with tape-and-glue fallback covers almost any placement you can think of, and the retention balance between secure and grabbable is genuinely good. At £9.99 there is very little to argue with. If your shotgun has M-LOK real estate going spare, this is one of the easiest upgrades in the range. Browse the full line of 3D printed airsoft gun accessories to see what else fits your build.