Lightweight billet aluminum castle nut and quick-detach end plate for AR-15 and AR-308 platforms. Mil-spec compatible with reduced weight and enhanced durability.
The Fortis Standard Castle Nut represents a thoughtful approach to AR platform refinement. Machined from solid billet aircraft-grade aluminum, this component delivers meaningful weight savings without compromising the durability your rifle demands.
Every ounce counts when you're building a rifle optimized for your specific mission. The Fortis approach acknowledges this reality: save weight where it matters, maintain strength where it counts. This castle nut and end plate assembly upgrades both the form and function of your AR platform build, whether you're assembling a new rifle or refining an existing one.
The quick-detach feature provides practical versatility for shooters who rotate between different sling systems or need rapid attachment adjustments in the field.