Luth-AR LUTH AR CARBINE LOCK RING/CASTLE NUT
$3.94
The Luth-AR Carbine Lock Ring/Castle Nut is essential for anyone looking to maintain or upgrade their AR-style rifle, ensuring a secure fit for your buffer tube. Crafted with precision and durability in mind, this component enhances your firearm’s performance, providing a reliable foundation for any shooting discipline. Trust Luth-AR for top-quality parts that keep your setup robust and dependable.
Out of stock
Luth-AR Carbine Lock Ring (Castle Nut) CS-02
| Weight | 0.063 lbs |
|---|---|
| Dimensions | 2.500 × 2.500 × 0.250 in |
| Manufacturer | Luth-AR |
| Finish | unknown |
| Weight | unknown |
| Material | unknown |
| Dimensions | unknown |
| Compatible With | unknown |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.

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