Daniel Defense 1 O'clock Offset Rail. Sniper rifle users often have to make sacrifices to achieve the long range power of a rifle scope and usually that sacrifice involves close range efficiency. However with this Daniel Defense mount there's no need for compromise; you can have your long range and peg targets at close to medium range too. These offset rail mounts are optimized for miniature red dot sights and designed to allow a quick transition from your riflescope to the sight. The Daniel Defense Offset Picatinny Mount mounts your optics at the 1 o'clock position (11 o'clock for left-handers) so you can switch from the scope to the red dot sight from magnified optics to normal ones without removing your cheek from the rifle's stock. Almost all weapon accessories can be optimized for vertical foregrip use simply by flipping them upside down on the rail. Though Daniel Defense has designed this offset mount for red dot sights it's also highly useful for flashlights laser sights and a host of other weapon accessories. Make your rifle effective at all ranges with the super fast transitions of the Daniel Defense Off-Set 1913 Accessory Mounting Hardware. Specifications for Daniel 1 O'Clock Offset Accessory Mount: Weight: 1.2 oz Material: 6061-T6 aluminum Finish: Type III hard coat anodized Color: Matte Black Rail: Picatinny 1913 Features of Daniel Defense 1:00 Offset Rail Mount for Red Dot Sights: Small part that mounts accessories to rail in the offset position Mounts accessory in 1 o'clock position for right-handed shooters and 11 o'clock position for left-handed shooters Optimized for small red dot sights Allows fast transition from long-range optics (like a rifle scope) to close range accessories (laser sights red dot sights flashlights) No change in cheek weld required for transition Extremely light weight Can be mounted upside down for optimized vertical foregrip use Mounts to military standard 1913 Picatinny rails and accessories Package Contents: Daniel Defense 1 O'Clock Offset Accessory Rail DD-15000 Daniel Defense Offset Rail Primarily For AR Style Rifles One O'Clock Right Hand Eleven O'Clock Left Hand