The M1A M14 picatinny rail. Replaces existing standard-issue front sling swivel on SOCOM synthetic stock. Provides a 3.25″ long MIL-STD-1913 picatinny rail for attachment of accessories.The M1A M14 picatinny rail. Replaces existing standard-issue front sling swivel on SOCOM synthetic stock. Provides a 3.25″ long MIL-STD-1913 picatinny rail for attachment of accessories.The M1A M14 picatinny rail. Replaces existing standard-issue front sling swivel on SOCOM synthetic stock. Provides a 3.25″ long MIL-STD-1913 picatinny rail for attachment of accessories.