SADLAK Steel Low Profile Front Rail Mounting System w/QD Post Universal Stock Black Medium. Steel Models uses unique internal Oval Nut plates specifically designed to fit the contour of four popular M14/M1A stocks. Specifications for SADLAK Steel Low Profile Front Rail Mounting System w/QD Post: Manufacturer: SADLAK Color: Black Finish: Black Phosphate Fabric/Material: Steel Gun Rail: Picatinny Gun Type: Rifle Gun Model: M14 Springfield Armory M1A Length: 3 in Width: 7 in Height: 0.5 in Weight: 3.03 oz Features of SADLAK Steel Low Profile Front Rail Mounting System w/QD Post Once the nut plate is installed the rail can be installed or removed without rifle disassembly using two external screws through counter bored holes in the rail. Package Contents: SADLAK Steel Low Profile Front Rail Mounting System w/QD Post SADLAK 1400630: Steel Low Profile Front Rail Mounting System w/QD Post Universal Stock Black Medium