Strike Industries T1 QD Rail Apapter Black. This new QD adapter was designed to be used in conjunction with a Strike Industries riser mount for a T1/T2 red dot sight. It has a unique locking method which involves a secondary lock. The secondary lock has a spring loaded latch which auto locks onto the lever when closed to fully maintain tension with the rail under recoil making any accidental "loosening" virtually impossible. To completely detach from the rail the secondary lock must be manually lifted in order to unlock the main locking mechanism and lever. The tension adjustment is simple and intuitive knob hidden behind the main lever. It's firm but easy enough to adjust with a small flathead screw driver or even your finger. An added benefit comes with this product for Strike customers who already own any of our various T1/T2 optic mounts. Get your QD fix for your red dot sight today. Specifications for Strike Industries T1 QD Rail Apapter: Manufacturer: Strike Industries Color: Black Optic Cut: Aimpoint T1 Length: 2.09 in Width: 1.78 in Height: 0.54 in Weight: 1.6 oz Features of Strike Industries T1 QD Rail Apapter QD Mount For T1/T2 Optics Dual locking mechanism Easy adjustment w/ flat head Large quick detach lever Compatible with all Strike T1 optic mounts Package Contents: Strike Industries T1 QD Rail Apapter 1 x Qdra Assembly 2 x Warning Card Strike Industries SI-T1-QDRA-BK: T1 QD Rail Apapter Black