M-Series Locking Retractable Truck Bed Cover for 2020-2026 Chevrolet Silverado/GMC Sierra 2500/3500 6.6 Ft. Bed Roll N Lock Rear Block Kits Preloaded with dyno-proven calibrations

Preloaded with dyno-proven calibrations

2'4" Lift Height

(1x) Hi/Low Harness

Upgrade your TRX with these 5" bright chrome on T-304 stainless steel tips

comfortable ride

M-Series Locking Retractable Truck Bed Cover for 2020-2026 Chevrolet Silverado/GMC Sierra 2500/3500 6.6 Ft. Bed Roll N Lock Rear Block Kits Preloaded with dyno-proven calibrationsRoll N Lock M Series is the most advanced retractable truck bed cover made, has redefined the rules for truck bed security. From its retractable function, which permits opening or closing in seconds, to its rigid, vinyl over aluminum laminated construction, this hybrid cover offers everything other covers do not. There are no snaps to manipulate, there is no roll or bundle to lash down or stow, no cross bars to negotiate, no fabric shrinkage to