Lantac LANTAC UFA-S, Ultimate Forward Assist

The LANTAC UFA-S™ (Ultimate Forward Assist – Solid) is a precision-engineered AR platform upgrade designed to improve durability, corrosion resistance, and operational refinement over standard forward assist assemblies. Machined on Swiss-style lathes from certified 4140 chromium-molybdenum steel, the UFA-S™ is built for strength and consistency under demanding conditions.

All critical components are heat treated and finished with a QPQ (Quench Polish Quench) nitride treatment for enhanced surface hardness, wear resistance, and long-term corrosion protection. The design refines both internal and external ergonomics, improving alignment, reducing snag points, and enhancing tactile control while maintaining full functional compatibility with AR upper receivers.

Product Features

• Precision Swiss lathe-machined construction for tight tolerances
• Enhanced forward assist cap design with reduced snag profile
• Optimized external knurling for improved grip and control
• Spiral retention pin design for improved structural integrity and durability
• Closed-end spring design for improved alignment and consistent seating
• Refined component geometry for smoother assembly integration
• Bead-blasted surfaces for reduced reflectivity and improved finish quality
• Improved overall weight efficiency compared to standard assemblies
• Manufactured in the USA from USA-sourced materials