The Strike Industries FSA Stabilizer is a modular, pre-assembled folding stabilizer designed for 1913 Picatinny rails. With its reinforced steel hinge, this robust and rigid stabilizer provides positive lockup for quick deployment and unparalleled stability. Weighing just 11oz, it enhances control and handling for any 1913 rail-equipped platform. ** ADAPTER PLATES NOT INCLUDED ** Key Features Pre-Assembled Design: Ready for fast installation with no additional setup required. Strong Lockup: Reinforced steel hinge ensures a secure and positive lock for reliability. Quick Deployment: Instantly folds to one side without reconfiguration or button presses. 1913 Picatinny Mount: Attaches directly using an M5 screw and locking plate. QD Sling Point: Allows quick sling attachment for added versatility. Compact Folding: Adds 9.09" (230.8mm) when deployed and only 0.8" (20.30mm) when folded. Durable Build: SI custom high-strength polymer stabilizer ends for long-lasting use.