This is an ideal knob for PRS competition rifles where fast bolt cycling and scope clearance are critical. The knob starts at a 0.47" stem diameter then has a concave taper to a 0.75" diameter end with a 1.25" overall length. This design is a result of feedback from many customers over the years wanting a slightly smaller knob but still gain extra leverage and clearance. The design includes a recessed end allowing for the bolt to be cycled using just an index finger or thumb. A longer internal thread of 0.7" allow fitment to a wider range of factory handles as well as the Lumley M6 adapter. Threaded for the common 5/16" x 24 TPI manufactured from genuine 3K carbon fiber composite. This is the same high-grade composite material used in expensive automotive parts, aerospace components, and racing bikes. It is never hot and slippery, or cold and sticky like metal knobs can be in weather extremes.
You will not find a stronger and lighter bolt knob anywhere!
Features:
- Genuine 3K carbon fiber
- Finish is non-glare matte
- Weighs 0.26 oz (7.4 gm)
- Dimensions: 1.25" length, 0.75" wide at top, 0.47" wide at base
- 5/16" x 24 TPI - Fits most threaded American bolt handles
- Thread length: 0.7"
- Maintenance - cosmetic scratches to the knob can be polished out. Gouges can be filled
- Environmental: chemically stable, UV stable, solvent resistant