The JP Enterprises Enhanced Carbine Buttstock Castle Nut brings a clean, refined look to the AR-15 platform while securely retaining your carbine buffer tube. Designed as an upgrade over standard mil-spec hardware, this steel castle nut features smooth, dehorned edges that reduce snagging and discomfort during handling, all finished in a discreet black that blends seamlessly with modern rifle builds.

This model is ideal for shooters who want a subtle but meaningful improvement to their AR-15 stock assembly, whether for range use, training, or competition-focused builds. Paired with JP’s matching lock plate, it helps create a cohesive, streamlined rear-end setup that supports long-term durability and consistent performance. The thoughtful design reflects JP Enterprises’ reputation for precision machining and practical innovation in AR-15 components.

Key Features:

• Manufacturer: JP Enterprises
• Model: Enhanced Carbine Buttstock Castle Nut
• Firearm Fit: AR-15
• Material: Steel
• Color: Black
• Category: Rifle Parts / Shooting Accessories