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M16 and M4 Rail Adapter Systems

These systems, which are the same ones provided to the US Government, are designed to fit carbine and rifle gas length rifles that feature standard delta rings and handguard caps (circle for M4 and triangle for M16). They come with polymer rail covers that help to protect the aluminium handguards from damage and keep your hands safe while using the Picatinny rail. Thanks to their drop-in installation method, there is no need to remove the delta ring or front sight. The handguards can be fixed in place in the same way that you would do with standard polymer handguards. Retaining mechanism tightens up the Rail Assembly System once installed, so that you can attach laser aiming devices and be confident in zero retention.

These handguards are produced by a US Government contractor and have not been used before. Brownells has received a shipment of these new production handguards for sale to customers.