Bisley Silencer Adapter 10mm Barrel to 1/2 UNF Male Thread

• Adapts a plain 10mm airgun barrel to accept a standard 1/2" UNF moderator
• Fits Air Arms S300, S310, S400 and S410 unshrouded barrels — also suits other 10mm barrels
• Gloss black anodised aluminium construction
• 56mm overall length; adds approximately 15mm to barrel; weighs approximately 12 grams
• Secured by a single grub screw; retained by the grub screw provided
• 1/2" UNF (1/2×20 TPI) male thread — the standard thread for UK airgun moderators
• Includes grub screw and Allen key

The Bisley Silencer Adapter allows you to fit a standard 1/2" UNF threaded moderator to an airgun with an unshrouded 10mm barrel. The aluminium sleeve slides over the barrel muzzle and is locked in place with a grub screw, converting the plain barrel to a 1/2" UNF (1/2×20 TPI) male thread. It is specifically designed for the Air Arms S300, S310, S400 and S410, though it will also suit any other airgun with a 10mm diameter unshrouded barrel. Made from gloss black anodised aluminium, the adapter measures 56mm overall, adds approximately 15mm to the barrel length, and weighs around 12 grams — light enough to have no meaningful effect on balance or handling. A grub screw and Allen key are included in the package. Once fitted, the adapter accepts any standard 1/2" UNF airgun moderator, making it a straightforward solution for reducing muzzle report on pest control and informal target-shooting airguns.

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