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SIG Sauer MCX Pistols

The SIG Sauer MCX AR pistols are engineered for modularity, reliability, and superior performance in a compact, tactical platform. Chambered in popular calibers like 5.56 NATO and .300 Blackout, MCX pistols feature a folding stock adapter, free-float handguard, and unmatched versatility. Shop SIG MCX AR pistols such as the SIG Rattler at Palmetto State Armory for cutting-edge design and mission-ready power.

MCX Pistols
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  1. Sig Sauer MCX Spear 300 Blackout AR-15 Pistol 9" 30rd, Coyote - PMCX-300B-9B-IR

    Sig Sauer MCX Spear 300 Blackout AR-15 Pistol 9" 30rd, Coyote - PMCX-300B-9B-IR

    Rating:
    100%
    (3)
    Regular Price $2,729.99 Special Price $2,499.99
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  2. Sig Sauer MCX Spear 5.56 NATO AR-15 Pistol 11.5" 30rd, Coyote - PMCX-556N-11B-IR

    Sig Sauer MCX Spear 5.56 NATO AR-15 Pistol 11.5" 30rd, Coyote - PMCX-556N-11B-IR

    Regular Price $2,729.99 Special Price $2,499.99
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  3. Sig Sauer MCX Rattler LT Pistol 5.56 7.75" Barrel 30-Rounds

    Sig Sauer MCX Rattler LT Pistol 5.56 7.75" Barrel 30-Rounds

    Rating:
    100%
    (1)
    Regular Price $2,729.99 Special Price $2,499.99
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  4. Sig Sauer MCX Spear 7.62x51 13" 20rds, Coyote

    Sig Sauer MCX Spear 7.62x51 13" 20rds, Coyote - PSPEAR-762-13B

    Regular Price $4,441.99 Special Price $4,000.99
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  5. Sig MCX 5.56 Pistol 5.5" 30rd. w/o Brace - PMCX-5B-TAP-NB

    Sig MCX 5.56 Pistol 5.5" 30rd. w/o Brace - PMCX-5B-TAP-NB

    Rating:
    80%
    (1)
    Out of Stock
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  6. Sig Sauer MCX-Rattler LT 7.62x39mm 7.75" Semi-Auto Tactical Pistol, Black - PMCX-762R-7B-LT-PCB

    Sig Sauer MCX-Rattler LT 7.62x39mm 7.75" Semi-Auto Tactical Pistol, Black - PMCX-762R-7B-LT-PCB

    Rating:
    80%
    (1)
    Out of Stock
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  7. Sig Sauer MCX Spear LT 7.62x39 Pistol 11.5" 28rd FDE - PMCX-762R-11B-LT

    Sig Sauer MCX Spear LT 7.62x39 Pistol 11.5" 28rd FDE - PMCX-762R-11B-LT

    Out of Stock
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  8. Sig MCX Spear-LT .300Blackout Pistol 8" 30rd, FDE

    Sig MCX Spear-LT .300Blackout Pistol 8" 30rd, FDE - PMCX-300B-9B-LT

    Out of Stock
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  9. SIG Sauer MCX SPEAR-LT 5.56 AR-15 Pistol 11" 30rd FDE

    SIG Sauer MCX SPEAR-LT 5.56 AR-15 Pistol 11" 30rd FDE

    Rating:
    80%
    (1)
    Out of Stock
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  10. Sig Sauer MCX Rattler PCB 5.56 NATO AR Pistol - PMCX-5B-TAP

    Sig Sauer MCX Rattler PCB 5.56 NATO AR Pistol - PMCX-5B-TAP

    Rating:
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    (1)
    Out of Stock
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  11. Sig Sauer MCX Rattler .300 AAC Blackout Pistol, Black - PMCX-300B-5B-TAP

    Sig Sauer MCX Rattler .300 AAC Blackout Pistol, Black - PMCX-300B-5B-TAP

    Rating:
    97%
    (6)
    Out of Stock
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  12. Sig Sauer MCX 11.5" 7.62X39mm Pistol

    Sig Sauer MCX 11.5" 7.62X39mm Pistol

    Out of Stock
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  13. Sig Sauer MCX Spear LT IR 5.56x45mm 11.50", Flat Dark Earth

    Sig Sauer MCX Spear LT IR 5.56x45mm 11.50", Flat Dark Earth

    Out of Stock
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  14. Sig Sauer MCX Spear 7.62x39mm 11.5" Pistol, Coyote - PMCX-762R-11B-LT-PCB

    Sig Sauer MCX Spear 7.62x39mm 11.5" Pistol, Coyote - PMCX-762R-11B-LT-PCB

    Out of Stock
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  15. Sig Sauer MCX Rattler LT Pistol - 7.62x399 - Black - 28rds - PMCX-762R-7B-LT

    Sig Sauer MCX Rattler LT Pistol - 7.62x399 - Black - 28rds - PMCX-762R-7B-LT

    Out of Stock
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  16. Sig Sauer MCX Rattler .300 Blackout 6.75" 30rd Pistol w/ ROMEO8T, Miami Tiger Stripe

    Sig Sauer MCX Rattler .300 Blackout 6.75" 30rd Pistol w/ ROMEO8T, Miami Tiger Stripe

    Rating:
    100%
    (2)
    Out of Stock
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  17. Sig Sauer MCX Spear 300 Blackout 9" 30rd Pistol, Black - PMCX-300B-9B-LT-B

    Sig Sauer MCX Spear 300 Blackout 9" 30rd Pistol, Black - PMCX-300B-9B-LT-B

    Rating:
    100%
    (2)
    Out of Stock
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  18. Sig Sauer MCX 11.5" 7.62x39mm Pistol, Black - PMCX-762R-11B-LT-B

    Sig Sauer MCX 11.5" 7.62x39mm Pistol, Black - PMCX-762R-11B-LT-B

    Rating:
    100%
    (2)
    Out of Stock
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  19. Sig Sauer MCX Spear 5.56 NATO 11.5" 30rd Pistol, Black - PMCX-556N-11B-LTB

    Sig Sauer MCX Spear 5.56 NATO 11.5" 30rd Pistol, Black - PMCX-556N-11B-LTB

    Out of Stock
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  20. Sig Sauer MCX Rattler LT 300 Blackout 7.75" 30rd Pistol, Black - PMCX-300B-6B-LT-PCB-300B-6B-LT-PCB

    Sig Sauer MCX Rattler LT 300 Blackout 7.75" 30rd Pistol, Black - PMCX-300B-6B-LT-PCB-300B-6B-LT-PCB

    Rating:
    100%
    (1)
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