The RIGEL Bolt Knob is a threaded collar with a threaded knob cap which clamp over a knob once screwed together. It requires no Smithing and no modifications.
Made from Anodized Aluminium. Note: There are two sizes (ensure your bolt and collar are not too large for this model). Med/Large available. See table below for size recommendations.
Australian owned RIGEL Bolt Knobs will fit:
| Small / Medium | Large | 
| Winchester XPR | Sauer 100 | 
| Sako 85 | Franchi Horizon Var | 
| Browning X Bolt Stalker | Winchester M70 | 
| Tikka T3X Var | Mauser M12 | 
| Montana ASR | Remington 700 | 
| Ruger American | Browning X Bolt Max Varmin | 
| CZ 457 | Sako 520 Hunter | 
| CZ 527 | Howa M100 | 
| CZ 557 | Weatherby Mark V Weathermark | 
| Savage 93 | Savage 110 Storm | 
| Weatherby Mark V | Ruger M77 Mark II | 
| Weatherby Vanguard S2 | |
| Howa 1500 | |
| Kimber 84M |