Compatibility and design Professional leftside folding adapter compatible with @R. Nondetachable structure; do not attempt to disassemble, or it may be damaged. Material and durability Made of aluminum alloy with a total weight of approximately 232 g including tools. Lightweight yet sturdy, with very hardness and no deformation during use. Maintenance and longevity Lubricating grease is applied to key parts at the factory to enhance user comfort and extend service life. Target users Particularly suitable for collectors and airsoft enthusiasts to modify their own toys. Use scenarios Scenario 1: An airsoft enthusiast modifies an @Rcompatible platform to add a reliable leftside folding option without compromising strength or fit. Scenario 2: A collector or display piece owner upgrades a model with a robust, nondetachable folding adapter for longterm durability and a clean, professional look. Scenario 3: A fieldready project requiring a compact, strength adapter that ships prelubricated for smooth operation and extended service life.