Barrel End Threaded Adapter 1/2 UNF Adapter for Discovery/Maximus models 1322 1377 2240 2250 2260 1/2 UNF Muzzle Brake Adapter
Custom made adapter for Discovery air rifle. 1/2 -20UNF standard thread for common air gun/rifle or LDC (lead dust collector). Lower part of the adapter has been flat cut to clear the way for filler cap, so it doesn’t interfere with your filling operation. With thread protector.
This will fit all 7/16″ (11mm)barrels, adapter has been precision reamed to that dimension (like 2240,2250,1377, 1322,13xx etc. – if you want adapter for these ones, they can be made without lower cut out).