SIG SAUER MCX/MPX/MCX-SPEAR Folding Magpul SL-K Stock And Adapter Flat Dark Earth. It comes complete with a MAGPUL MOE SL-K stock. Attaches to your MCX or MPX vertical Picatinny section. Specifications for SIG SAUER MCX/MPX/MCX-SPEAR Folding Magpul SL-K Stock And Adapter: Manufacturer: SIG SAUER Gun Make: SIG Sauer Gun Model: Sig Sauer MCX-SPEAR LT Sig Sauer MCX-SPEAR SIG Sauer MCX SIG Sauer MPX Color: Flat Dark Earth Weight: 25 oz Condition: New Stock/Brace Material: Polymer Aluminum Package Contents: SIG SAUER MCX/MPX/MCX-SPEAR Folding Magpul SL-K Stock And Adapter What firearm models does the manufacturer say SIG SAUER MCX/MPX/MCX-SPEAR Folding Magpul SL-K Stock And Adapter is compatible with? The manufacturer says that SIG SAUER MCX/MPX/MCX-SPEAR Folding Magpul SL-K Stock And Adapter is compatible with SIG Sauer MPX SIG Sauer MCX Sig Sauer MCX-SPEAR Sig Sauer MCX-SPEAR LTSIG SAUER 8901407: MCX/MPX/MCX-SPEAR Folding Magpul SL-K Stock And Adapter Flat Dark Earth