Product Overview
The LayLax First Factory Next Gen. M4 Hard Castle Nut (Buffer Ring) is a structural external reinforcement component engineered for Tokyo Marui Next Generation Recoil Shock (NGRS) M4 platforms. The intense linear vibration generated by the TM NGRS recoil weight frequently loosens factory buffer rings over extended firing cycles. Precision-machined from heavy-duty heat-treated carbon steel, this reinforced castle nut delivers exceptional tensile strength and rigid torque retention. It provides a secure lock against the lower receiver and buffer tube assembly, preventing buffer tube loosening, wire pinching, and alignment shifts. A critical inventory requirement for airsoft retail workbenches and commercial skirmish site repair armouries.
Technical Specifications & Materials
- Component Type: Buffer tube retaining ring / castle lock nut
- Material: Heavy-duty CNC-machined carbon steel
- Platform Compatibility: Tokyo Marui Next Gen Recoil Shock (NGRS) M4 / AR-15 series
- Surface Finish: Wear-resistant black oxide anti-corrosion coating
- Tool Interface: Precision-notched perimeter designed for standard castle nut wrenches
- Mechanical Function: High-torque buffer tube retention and recoil absorption
- Fitting Standard: Direct replacement for Tokyo Marui OEM castle nuts
- Dimensional Compatibility: Proprietary NGRS buffer tube external thread pitch
- Colour: Black

