
Availability: In Stock
Current Stock: Out of stock
The Fortis Lightweight Enhanced AR15 end plate is a thoughtfully engineered alternative to traditional castle nut assemblies. Built around Fortis's K1 system, this end plate uses a tapered design that seats and seals the castle nut automatically—no staking, no set screws, no ratcheting mechanism required. If you're building or upgrading an AR and tired of wrestling with conventional end plates or worrying about them loosening, this is a cleaner, more reliable approach that simplifies the back-end of your receiver extension.
The end plate is machined from 7075 T6 aircraft-grade aluminum, keeping weight minimal without compromising durability. The tapered castle nut fit is precision-tight enough that it locks in place on its own, eliminating the failure modes that plague looser designs. That means no backing out, no need to re-stake after shooting, and no risk of the nut gradually walking free under recoil. It's the kind of thoughtful engineering that prevents headaches down the line.
The included quick-detach socket makes installation and removal straightforward, so whether you're field-stripping for cleaning or swapping your buffer tube setup, you won't need improvised tools or your armorer's vise. The gold finish is cosmetic, but it pairs well with other anodized components if you're building a cohesive look.
| Brand | Fortis Manufacturing, Inc. |
| Product Type | AR15 End Plate |
| Material | 7075 T6 Aircraft-Grade Aluminum |
| System | K1 Tapered Castle Nut Design |
| Finish | Gold Anodized |
| Included Accessories | Quick-Detach Socket |
No. The tapered K1 design automatically seats and seals the castle nut without staking, set screws, or ratcheting mechanisms.
The end plate comes with a quick-detach socket for installation and removal.
The Fortis end plate is machined from 7075 T6 aircraft-grade aluminum, a high-strength alloy that keeps weight low while maintaining durability.
Yes, this is a standard AR15 end plate compatible with AR15 receiver extensions.

SKU: 167516127 • Width: 2.75in • Height: 1.25in • Depth: 2in • Weight: 0.5oz





Availability: In Stock
Current Stock: Out of stock
The Fortis Lightweight Enhanced AR15 end plate is a thoughtfully engineered alternative to traditional castle nut assemblies. Built around Fortis's K1 system, this end plate uses a tapered design that seats and seals the castle nut automatically—no staking, no set screws, no ratcheting mechanism required. If you're building or upgrading an AR and tired of wrestling with conventional end plates or worrying about them loosening, this is a cleaner, more reliable approach that simplifies the back-end of your receiver extension.
The end plate is machined from 7075 T6 aircraft-grade aluminum, keeping weight minimal without compromising durability. The tapered castle nut fit is precision-tight enough that it locks in place on its own, eliminating the failure modes that plague looser designs. That means no backing out, no need to re-stake after shooting, and no risk of the nut gradually walking free under recoil. It's the kind of thoughtful engineering that prevents headaches down the line.
The included quick-detach socket makes installation and removal straightforward, so whether you're field-stripping for cleaning or swapping your buffer tube setup, you won't need improvised tools or your armorer's vise. The gold finish is cosmetic, but it pairs well with other anodized components if you're building a cohesive look.
| Brand | Fortis Manufacturing, Inc. |
| Product Type | AR15 End Plate |
| Material | 7075 T6 Aircraft-Grade Aluminum |
| System | K1 Tapered Castle Nut Design |
| Finish | Gold Anodized |
| Included Accessories | Quick-Detach Socket |
No. The tapered K1 design automatically seats and seals the castle nut without staking, set screws, or ratcheting mechanisms.
The end plate comes with a quick-detach socket for installation and removal.
The Fortis end plate is machined from 7075 T6 aircraft-grade aluminum, a high-strength alloy that keeps weight low while maintaining durability.
Yes, this is a standard AR15 end plate compatible with AR15 receiver extensions.
SKU: 167516127 • Width: 2.75in • Height: 1.25in • Depth: 2in • Weight: 0.5oz
