Bolt Knob

Our products

Bolt knob provides a comfortable and firm grip of bolt and handling with it. Especially shooters with large hands often have problems with attachment of original small bolt knobs. Handling problems are sometimes with small bolt knobs even at shooting with gloves. These challenges solves a big bolt knob.

The bolt knob is mounted on the knob by using M6 thread, its diameter is 25 mm and length 55 mm. Made of aluminum alloy AW 7075 Ergal. Fitted with a cross indentations and four recesses for maximum roughening of the surface and create the ideal conditions for a firm grip.

Finish is available in:

  • polished aluminum
  • polished black anodized
  • sandblasted black anodized

The finish is implemented in the state of hard anodizing, when this layer is more resistant to mechanical scratching.

Bolt knobs can be mount for example on rifles type CZ 550, CZ 557

Technical data:
  • Thread: M6
  • Diameter: 25 mm
  • Length: 55 mm
  • Weight: 56 g
  • Material: AW 7075 Ergal

Another version is bolt knob made of steel. Thanks to its higher weight 157 g, the control of the bolt is easier. The surface is provided with four recesses without cross indentations, otherwise it is the same size like a bolt knob made of aluminum alloy.

Finish is available in:

  • polished steel
  • polishing, alkaline oxidation
  • sandblasting, alkaline oxidation

Technical data:
  • Thread: M6
  • Diameter: 25 mm
  • Length: 55 mm
  • Weight: 157 g
  • Material: steel

For guns with thread UNF 5/16″x24 are available bolt knobs made of aluminium alloy AW 7075 Ergal. Its diameter is 24 mm and length 55 mm. The surface is provided with four recesses without cross indentations.

Finish is available in:

  • polished aluminum
  • polished black anodized
  • sandblasted black anodized

Technical data:
  • Thread: UNF 5/16"x24
  • Diameter: 24 mm
  • Length: 55 mm
  • Weight: 51 g
  • Material: AW 7075 Ergal

Smallbore rifles CZ 455, CZ 457

For smallbore rifles CZ 455, CZ 457 with thread M6 are available bolt knobs made of aluminium alloy AW 7075 Ergal. Its diameter is 19 mm and length 40 mm. The surface is provided with three recesses without cross indentations.

Finish is available in:

  • polished aluminum
  • polished black anodized
  • sandblasted black anodized

Technical data:
  • Thread: M6
  • Diameter: 19 mm
  • Length: 40 mm
  • Weight: 22 g
  • Material: AW 7075 Ergal

Smallbore rifles Ruger Precision Rimfire

For smallbore rifles Ruger Precision Rimfire with thread UNF 5/16"x24 are available bolt knobs made of aluminium alloy AW 7075 Ergal. Its diameter is 23 mm and length 43 mm. The surface is provided with three recesses without cross indentations.

Finish is available in:

  • polished aluminum
  • polished black anodized
  • sandblasted black anodized

Technical data:
  • Thread: UNF 5/16"x24
  • Diameter: 23 mm
  • Length: 43 mm
  • Weight: 36 g
  • Material: AW 7075 Ergal

Rifles Blaser R8

For rifles Blaser R8 with thread M6 are available bolt knobs made of steel. Its diameter is 25 mm and length 45 mm. The surface is provided with three recesses without cross indentations.

Finish is available in:

  • polished steel
  • polishing, alkaline oxidation
  • sandblasting, alkaline oxidation

Technical data:
  • Thread: M6
  • Diameter: 25 mm
  • Length: 45 mm
  • Weight: 125 g
  • Material: steel