BCM has released early prototypes that launched their popular QRF line! These will only be available for a limited time and there are no plans to release them in the future.

Featuring the same industry-leading barrel nut and locking design that was originally introduced with the evolutionary BCM KMR handguard, the QRF Series provide shooters with modularity on the Picatinny platform (MIL-STD-1913). It includes T, L, R and B position markings on all four rails to assist the user in symmetrical mounting of accessories.

This patented mounting system (US Patent 8904691) includes a mechanical index to the top rail and positions mounted accessories to negate movement caused by heat generated by a weapon.

Source: Bravo Company USA