The Dark Hour Defense Castle Nut is machined from 4140 alloy for strength, built to mil spec dimensions, and is an economical option compared to some castle nuts on the marketplace made from unobtainium. It can be installed / tightened with a single point hook style wrench found on most AR multi tools.
- Castle nut for AR15 style collapsible stocks
- Machined from 4140 alloy
- Black melonite finish
- Weighs 0.5 ounce / 15 grams
- Lifetime warranty
For complete and current information on this item please see the manufacturer's website.
Satisfaction guaranteed. We are so confident that you will be 100% satisfied with this product that we have protected your purchase with our 30 day money back guarantee.
California residents: this product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information visit https://www.p65warnings.ca.gov.