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SIG Sauer Firearms, Optics, Ammo & Accessories

SIG Sauer is a weapon systems manufacturer with a long-standing commitment to innovation, ingenuity, and quality. For decades military, law enforcement, and commercial users have favored SIG firearms for its passion for design, durability, and accuracy. SIG's extensive manufacturing capacity allows it to respond quickly to changing market conditions on a global scale, while not compromising the quality and reliability.

Shop premium SIG Sauer optics, magazines, accessories, parts, and gear at Palmetto State Armory. This collection features trusted Sig Sauer products designed to enhance performance, reliability, and everyday use. Explore authentic Sig gear and upgrades for range, duty, and personal defense setups. Shop SIG Sauer firearms at PSA. 

SIG Sauer
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Items 385-408 of 1460

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  1. Sig Sauer Optic Ready Slide Assembly Fits P365X/P365XL Compact, Coyote Brown - Precision Engineering - 8901559

    Sig Sauer Optic Ready Slide Assembly Fits P365X/P365XL Compact, Coyote Brown - Precision Engineering - 8901559

    Regular Price $663.99 Special Price $597.99
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  2. Sig Sauer Optic Ready Slide Assembly Fits P320 Sub-Compact, Coyote Brown - Versatile and Strong - 8901567

    Sig Sauer Optic Ready Slide Assembly Fits P320 Sub-Compact, Coyote Brown - Versatile and Strong - 8901567

    Regular Price $699.99 Special Price $643.99
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  3. Sig Sauer Folding Locking Pistol Brace Fits MCX-Spear/MCX-Spear LT/MPX Black - For Enhanced Stability and Tactical Use - 8901672

    Sig Sauer Folding Locking Pistol Brace Fits MCX-Spear/MCX-Spear LT/MPX Black - For Enhanced Stability and Tactical Use - 8901672

    Rating:
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    Regular Price $249.99 Special Price $226.99
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  4. Sig Sauer Optic Ready Slide Assembly Fits P320 Full-Size - Black, Precision-Fit Upgrade - 8901570

    Sig Sauer Optic Ready Slide Assembly Fits P320 Full-Size - Black, Precision-Fit Upgrade - 8901570

    Regular Price $699.99 Special Price $643.99
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  5. Sig Sauer Optic Ready Slide Assembly Fits P320 Carry/P320 Compact, Black - Enhanced Performance - 8901568

    Sig Sauer Optic Ready Slide Assembly Fits P320 Carry/P320 Compact, Black - Enhanced Performance - 8901568

    Regular Price $714.99 Special Price $643.99
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  6. Sig Sauer Optic Ready Slide Assembly Fits P320 Sub-Compact, Black - Ready for Customization - 8901566

    Sig Sauer Optic Ready Slide Assembly Fits P320 Sub-Compact, Black - Ready for Customization - 8901566

    Regular Price $699.99 Special Price $643.99
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  7. Sig Sauer Optic Ready Slide Assembly Fits P320 Full-Size, Black - Tactical and Durable - 8901534

    Sig Sauer Optic Ready Slide Assembly Fits P320 Full-Size, Black - Tactical and Durable - 8901534

    Regular Price $795.99 Special Price $716.99
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  8. Sig Sauer Complete Caliber X-Change Conversion Kit Fits P365/P365-XMACRO/P365X/P365XL, Black - Precision Performance - 8901443

    Sig Sauer Complete Caliber X-Change Conversion Kit Fits P365/P365-XMACRO/P365X/P365XL, Black - Precision Performance - 8901443

    Rating:
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    Regular Price $631.99 Special Price $568.99
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  9. Sig Sauer Barrel 9mm 4.70" Fits P365/P365X/P365 X-Macro, Gold - Superior Accuracy - 8900791

    Sig Sauer Barrel 9mm 4.70" Fits P365/P365X/P365 X-Macro, Gold - Superior Accuracy - 8900791

    Regular Price $234.99 Special Price $210.99
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  10. Sig Sauer Barrel 9mm 3.90" Fits P365/P365X/P365 X-Macro, Gold - Precision Engineering - 8900790

    Sig Sauer Barrel 9mm 3.90" Fits P365/P365X/P365 X-Macro, Gold - Precision Engineering - 8900790

    Regular Price $229.99 Special Price $210.99
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  11. Sig Sauer Barrel 9mm 3.10" Fits P365/P365X/P365 X-Macro, Gold - High-Quality Finish - 8900776

    Sig Sauer Barrel 9mm 3.10" Fits P365/P365X/P365 X-Macro, Gold - High-Quality Finish - 8900776

    Regular Price $234.99 Special Price $210.99
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  12. Sig Sauer Recoil Spring Assembly for P365XL/P365-X-Macro - High-Performance Recoil Spring for Improved Sig Sauer Pistols - 8900677

    Sig Sauer Recoil Spring Assembly for P365XL/P365-X-Macro - High-Performance Recoil Spring for Improved Sig Sauer Pistols - 8900677

    Rating:
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    Regular Price $38.99 Special Price $34.49
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  13. Sig Sauer MCX Spear LT 5.56 NATO AR-15 Rifle 16" 30rd, Coyote - RMCX-556N-16B-IR

    Sig Sauer MCX Spear LT 5.56 NATO AR-15 Rifle 16" 30rd, Coyote - RMCX-556N-16B-IR

    Regular Price $2,887.99 Special Price $2,600.99
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  14. 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:
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    Regular Price $2,729.99 Special Price $2,499.99
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  15. Sig Sauer Romeo 5 Gen II Green Dot - SOR5102

    Sig Sauer Romeo 5 Gen II Green Dot - SOR5102

    Rating:
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    Regular Price $162.99 Special Price $147.99
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  16. Sig Sauer Romeo5XDR Gen II 1x20mm 2MOA Red Dot - SOR5X201

    Sig Sauer Romeo5XDR Gen II 1x20mm 2MOA Red Dot - SOR5X201

    Regular Price $229.99 Special Price $199.99
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  17. Sig Sauer Cross Magnum .300 Win Mag Bolt Action Rifle, Coyote - CROSS-MAG-300WM-24B

    Sig Sauer Cross Magnum .300 Win Mag Bolt Action Rifle, Coyote - CROSS-MAG-300WM-24B

    Regular Price $2,599.99 Special Price $2,399.99
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  18. Sig Sauer P320-XFull Grip Module - Coyote Tan for Sig P320, Offers Superior Ergonomics and Tactical Advantage - GRIP-MODX-F-943-SM-COY

    Sig Sauer P320-XFull Grip Module - Coyote Tan for Sig P320, Offers Superior Ergonomics and Tactical Advantage - GRIP-MODX-F-943-SM-COY

    Rating:
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    Regular Price $91.99 Special Price $81.99
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  19. Sig Sauer P320-XFull Grip Module Full Fits P320 - Coyote Tan - for Enhanced Performance and Tactical Style - GRIP-MODX-F-943-LG-COY

    Sig Sauer P320-XFull Grip Module Full Fits P320 - Coyote Tan - for Enhanced Performance and Tactical Style - GRIP-MODX-F-943-LG-COY

    Regular Price $91.99 Special Price $81.99
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  20. Sig Sauer Cross-PRS .308 Win Bolt Action Rifle, Elite Concrete - CROSS-308-24B-PRS

    Sig Sauer Cross-PRS .308 Win Bolt Action Rifle, Elite Concrete - CROSS-308-24B-PRS

    Regular Price $2,776.99 Special Price $2,500.99
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  21. Sig Sauer P320-X Carry Grip Module - Fits P320, Coyote Tan, Reliable Enhancement for Better Control and Comfort - GRIP-MODX-CA-943-SM-COY

    Sig Sauer P320-X Carry Grip Module - Fits P320, Coyote Tan, Reliable Enhancement for Better Control and Comfort - GRIP-MODX-CA-943-SM-COY

    Regular Price $91.99 Special Price $81.99
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  22. Sig Sauer P320-AXG Legion 9mm 3.90" Compact Pistol 10rds, Gray - Functional - 320AXGF-9-LEGION-10

    Sig Sauer P320-AXG Legion 9mm 3.90" Compact Pistol 10rds, Gray - Functional - 320AXGF-9-LEGION-10

    Regular Price $1,477.99 Special Price $1,330.99
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  23. Sig Sauer P320-M18 CA Compliant 9mm 3.90" Compact Pistol 10rds, Coyote - Sleek and Versatile - 320CA-9-M18-MS-CA

    Sig Sauer P320-M18 CA Compliant 9mm 3.90" Compact Pistol 10rds, Coyote - Sleek and Versatile - 320CA-9-M18-MS-CA

    Regular Price $778.99 Special Price $700.99
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  24. Sig Sauer P320-XCompact Grip Module, Compact Fit - Black, Upgrade for Superior Handling and Performance on Sig P320 Firearms - GRIP-MODX-C-943-LG-BLK

    Sig Sauer P320-XCompact Grip Module, Compact Fit - Black, Upgrade for Superior Handling and Performance on Sig P320 Firearms - GRIP-MODX-C-943-LG-BLK

    Regular Price $91.99 Special Price $81.99
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  1. Firearms 497
  2. Optics 400
  3. Ammo 121
  4. Magazines 94
  5. Parts & Accessories 231
  6. SIG Sauer Rose 20
  7. Airguns 42
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SIG Sauer FAQs

Is SIG Sauer a good brand?

SIG Sauer is widely considered a top-tier firearms manufacturer known for reliability, innovation, and military-grade performance. Its products are used by law enforcement, military units, and

civilian shooters worldwide.

Why is SIG Sauer so popular?

SIG Sauer is popular due to its consistent build quality, modular firearm designs, and strong reputation for accuracy and durability. Models like the P365 and P320 have set industry standards in their categories.

Where is SIG Sauer made?

SIG Sauer firearms for the U.S. market are primarily manufactured in Newington, New Hampshire, with additional global operations supporting production and engineering.

What is the most popular SIG Sauer pistol?

The SIG Sauer P365 is one of the most popular concealed carry pistols due to its compact size and high capacity. The P320 is also widely used for duty and home defense applications.

Is the SIG Sauer P365 better than the P320?

The P365 is better suited for concealed carry due to its smaller size, while the P320 offers greater modularity and is often preferred for duty or range use. The best option depends on intended use.

What rifles does SIG Sauer make?

SIG Sauer produces modern sporting rifles like the MCX and MPX, as well as precision bolt-action rifles in the CROSS series. These platforms are designed for performance, modularity, and suppressor compatibility.

Does SIG Sauer make optics?

SIG Sauer offers a full line of optics, including red dots and rifle scopes under the ROMEO and TANGO series. These optics are designed to integrate seamlessly with their firearms.

Is SIG Sauer ammo reliable?

SIG Sauer ammunition is manufactured to high standards for consistency and reliability across training, hunting, and defensive applications.

Are SIG Sauer guns worth the money?

SIG Sauer firearms are typically priced higher than entry-level options but are valued for their durability, performance, and advanced features, making them a strong long-term investment.

Can SIG Sauer firearms use suppressors?

Many SIG Sauer firearms are designed to be suppressor-ready or compatible with threaded barrels. The company also produces its own suppressors optimized for its platforms.