A variable adapter for barrels that are not threaded. The variable adapter is simply pushed onto the end of the barrel & tightened in place with the thumb screws.
The bore & outer barrel MUST be concentric! Otherwise damage or injury could occur.
Select the maximum outer diameter of the barrel from the options. The adapters can be adjusted from its maximum diameter down to the minimum diameter by changing the internal inserts.
The barrel MUST make contact at FOUR points, as close as possible to the top & bottom of the barrel. If the adapter is making contact at the middle of the barrel mis-alignment can occur.
Thumb screws are aluminium & supplied with either knurled or printed tabs.
Price is for 1 adapter, with 1 set of screws.
