The Cross Armory Flop Stop Pin Pal Stabilizer System is a must-have upgrade for your AR-15 designed to enhance safety efficiency and convenience during reloads. This innovative system securely holds the upper receiver in an open position preventing it from falling forward and protecting your fingers from pinches while maintaining a stable weapon configuration. The included Pin Pal front takedown pin replacement features a locking nut and a lubricated captive bearing reducing wear on the front pivot point for long-lasting durability. Crafted from 4140 ordnance steel with a melonite hard coat finish the Pin Pal is both robust and corrosion-resistant. It is also removable allowing you to revert to the factory configuration if desired. Fully compatible with all compliance products and standard AR-15 configurations the Flop Stop ensures seamless integration with your firearm while delivering superior performance and reliability.