About this stock
This Guntec USA castle nut is a mil-spec replacement for AR-15 carbine (CAR/M4) buffer tubes. The castle nut locks the receiver end plate and buffer tube in place on the lower receiver, so a solid one keeps the stock from loosening. Made from steel in the USA.
Specifications
- Brand: Guntec USA
- Fits: AR-15
- Material: Steel
- Made In The Usa: Made In The Usa
- Manufacturer Part #: CASTLE
- UPC: 714569643782
Buying from WBT Guns
- Delivery: Ships to your door anywhere in the United States, or pick it up free at our La Mesa store.
- Payment: Pay in full or finance with Credova.
- Questions: Fitment or compatibility questions? Call (619) 667-9453 or email sales@wbtguns.com. FAQ
WBT Guns is family-owned in La Mesa, California, and has served shooters since 2012.
A note on accuracy. Specifications, fitment and images come from the manufacturer and can contain errors or change without notice. If a detail matters to your purchase, call us and we will confirm it before you order. Any compliance notes are general information, not legal advice; California and local laws change, and the rules that apply depend on the firearm the part goes on.
