Fortis Manufacturing lightweight enhanced end plate with K1 tapered castle nut system. Self-sealing design eliminates staking, ratcheting, and set screws for reliable performance.
Fits: AR15
The Fortis K1 System represents a thoughtful engineering solution to a common AR15 assembly challenge. This lightweight end plate features an innovative tapered castle nut design that seals itself into place through precision fit—no staking required.
Staking an AR15 end plate is one of those tasks that separates careful builders from rushed ones. The Fortis K1 System removes this concern entirely. The tapered design creates a mechanical lock that holds firm without additional fastening methods, making this an excellent choice for both experienced builders and those new to AR platform assembly.
Whether you're building a precision rifle or upgrading an existing platform, this end plate delivers both functional excellence and aesthetic appeal.