Are you 18 or older?

Please confirm that you are at least 18 years old before entering.

This entrance acknowledgment does not prove eligibility to buy a firearm or ammunition. Age and identity requirements are checked separately for regulated purchases.

Skip to main content

The Gun NookFirearms · Ammunition · Gear

Search products

Shop Cart (0)Sign In / Account Order Status

← Back to catalog results

LUTH AR CARBINE LOCK RING/CASTLE NUT

Photo coming soon. This item is currently in stock.

Parts

LUTH AR CARBINE LOCK RING/CASTLE NUT

UPC: 859819007201

$5.05

Available

Luth-AR Carbine Lock Ring (Castle Nut) CS-02

Quantity

The Gun Nook

Firearms, ammunition, and gear backed by personal service. Firearm orders must transfer through a licensed FFL.

Store

Shop products Cart Customer account Order status Store policies Privacy Terms

Contact and availability

sales@thegunnook.com

Serving Polk County, Florida

Pickup and transfer availability is confirmed with your order.

© 2026 The Gun Nook.