The CowCow A01 silencer adapter is a precision-engineered threading converter designed to expand your barrel and silencer compatibility. If you’re running a CowCow OB1 5.1 SS outer barrel or any 11mm positive-threaded setup, this adapter unlocks access to the vast range of 14mm negative silencers and tracer units available on the UK market.
Key Features
- Stainless steel construction – corrosion-resistant and durable for outdoor play
- CNC machined finish – precise threading for secure, rattle-free mounting
- 11mm positive to 14mm negative conversion – fits most popular silencers and tracers
- Knurled thread protector – easy grip for tool-free adjustment and removal
- Compatible with CowCow OB1 5.1 SS outer barrels – designed for Hi-Capa pistols
Real-World Use Cases
Whether you’re upgrading a Hi-Capa build, switching to a new suppressor, or standardising your loadout across multiple pistols, the A01 adapter solves threading incompatibilities. Perfect for milsim players who prefer quieter setups or skirmishers looking to match barrel profiles with off-the-shelf silencers.
Technical Specifications
- Material: Stainless steel (CNC machined)
- Thread conversion: 11mm positive → 14mm negative
- Finish: Knurled grip design
- Compatibility: CowCow OB1 5.1 SS barrels; most 14mm negative silencers
Compatibility & Upgrades
The A01 adapter is designed specifically for CowCow OB1 5.1 SS outer barrels but will work with any 11mm positive-threaded barrel. Pair it with any standard 14mm negative silencer, tracer unit, or muzzle brake to customise your pistol’s appearance and performance.
UK Legal & Site Notes
As a threading adapter, this component is unrestricted. Always check your local airsoft site rules regarding silencer use—some venues favour tracer units during low-light games. Ensure your silencer is rated for your pistol’s muzzle velocity.
Upgrade your CowCow pistol’s compatibility today with precision-engineered threading that won’t let you down.










