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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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Optics
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Items 577-600 of 1460

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  1. Sig Sauer MPX 9mm 20rd Magazine, Black - 8900828

    Sig Sauer MPX 9mm 20rd Magazine, Black - 8900828

    Regular Price $57.99 Special Price $51.99
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  2. Sig Sauer P226 XFIVE Classic Pistol 5" 20rd, Stainless - 226X5-9-CLASSIC

    Sig Sauer P226 XFIVE Classic Pistol 5" 20rd, Stainless - 226X5-9-CLASSIC

    Rating:
    100%
    (1)
    Regular Price $2,399.99 Special Price $2,299.99
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  3. Sig Sauer P220 Legion .45 ACP Pistol 4.4" 8rd, Gray

    Sig Sauer P220 Legion .45ACP Pistol 4.4" 8rd, Gray - 220R-45-LEGION-R2

    Rating:
    100%
    (1)
    Regular Price $1,555.99 Special Price $1,400.99
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  4. Sig Sauer P220 FS Legion .45ACP 4.4" 8rd, Legion Gray

    Sig Sauer P220 FS Legion .45ACP 4.4" 8rd, Legion Gray - 220R-45-LEGION-SAO-R2

    Regular Price $1,555.99 Special Price $1,400.99
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  5. SIG P320 AXG Full Size 9mm Pistol 17rd, Two-Tone Coyote

    SIG Sauer P320 AXG Full Size 9mm Pistol 4.7" 17rd, Two-Tone Coyote

    Regular Price $1,299.99 Special Price $1,099.99
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  6. Sig Sauer P365-XMacro Grip Module, Black - 8901179

    Sig Sauer P365-XMacro Grip Module, Black - 8901179

    Rating:
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    Regular Price $102.99 Special Price $91.99
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  7. SIG Sauer P320X5 DH3 9mm Pistol 5" 21rd, Coyote Cerakote

    SIG Sauer P320X5 DH3 9mm Pistol 5" 21rd, Coyote Cerakote

    Rating:
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    Regular Price $1,477.99 Special Price $1,330.99
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  8. Sig Sauer P320 9mm Threaded Barrel 5.5" 1/2x28

    Sig Sauer P320 9mm Threaded Barrel 5.5" 1/2x28

    Regular Price $234.99 Special Price $210.99
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  9. Sig Sauer M400 5.56 NATO Semi-Auto Rifle 16" 30rd, Black - RM400-SDI-16B-P

    Sig Sauer M400 5.56 NATO Semi-Auto Rifle 16" 30rd, Black - RM400-SDI-16B-P

    Regular Price $1,649.99 Special Price $1,499.99
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  10. Sig Romeo 2 Modular Reflex Sight - Black - SOR21000

    Sig Romeo 2 Modular Reflex Sight - Black - SOR21000

    Regular Price $845.99 Special Price $761.99
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  11. Sig Sauer P365XL Grip Module, Gray

    Sig Sauer P365XL Grip Module, Gray

    Regular Price $89.99 Special Price $80.99
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  12. SIG Sauer P320 Carry 9/40/357 AXG Grip Module Assembly G10 Grip Panel - 8900063

    SIG Sauer P320 Carry 9/40/357 AXG Grip Module Assembly G10 Grip Panel - 8900063

    Regular Price $399.99 Special Price $359.99
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  13. SIG Sauer P365XL Grip Module Assembly Subcompact, Black - 8900062

    SIG Sauer P365XL Grip Module Assembly Subcompact, Black - 8900062

    Rating:
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    Regular Price $91.99 Special Price $81.99
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  14. SIG Sauer P320 Carry Grip Module 9/40 LG, Black - 8900030

    SIG Sauer P320 Carry Grip Module 9/40 LG, Black - 8900030

    Regular Price $69.99 Special Price $63.99
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  15. Sig 320XF 4.7" 17rd 9mm Pistol, Black - 320XF-9-BXR3P-R2

    Sig 320XF 4.7" 17rd 9mm Pistol, Black - 320XF-9-BXR3P-R2

    Rating:
    100%
    (2)
    Regular Price $811.99 Special Price $730.99
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  16. SIG Sauer P365 .380 ACP Magazine 12 Round for sale

    SIG Sauer P365 Magazine .380 ACP 2 Round - 8900716

    Regular Price $49.99 Special Price $47.99
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  17. Sig MPX 9mm Carbine 16" 35 RD, Black - RMPX-16B-9-35

    SIG Sauer MPX 9mm Carbine 16" 35 RD, Black - RMPX-16B-9-35

    Regular Price $2,441.99 Special Price $2,199.99
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  18. Sig Romeo 2 3 MOA Red Dot Sight, Black

    Sig Romeo 2 3 MOA Red Dot Sight, Black - SOR21300

    Regular Price $778.99 Special Price $700.99
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  19. Sig Romeo 2 6 MOA Red Dot Sight, Black

    SIG Sauer ROMEO2 Red Dot Sight 6 MOA, Black - SOR21600

    Regular Price $778.99 Special Price $700.99
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  20. Sig P320 XTEN 5" Optics Ready 10mm Pistol, Black

    Sig P320 XTEN 5" Optics Ready 10mm Pistol, Black - 320X5-10-BXR3-R2

    Rating:
    90%
    (2)
    $829.99
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  21. Sig P320 9mm 30 Round Extended Magazine, Black

    Sig P320 9mm 30 Round Extended Magazine, Black - 8900576

    Rating:
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    Regular Price $59.99 Special Price $57.99
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  22. Sig P320 X-Compact Optics Ready 9mm Pistol With XRAY3 Night Sights, Black - 320XC-9-BXR3P-R2

    Sig P320 X-Compact Optics Ready 9mm Pistol With XRAY3 Night Sights, Black - 320XC-9-BXR3P-R2

    Rating:
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    Regular Price $811.99 Special Price $730.99
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  23. Sig Sauer P322 Ambidextrous IWB/OWB Holster, Black

    Sig Sauer P322 Ambidextrous IWB/OWB Holster, Black - 8900758

    Rating:
    20%
    (1)
    Regular Price $29.99 Special Price $26.99
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  24. Sig Sauer P322 .22 LR 25 Round Magazine, Black

    Sig Sauer P322 .22 LR 25 Round Magazine, Black - 8900746

    Rating:
    87%
    (6)
    Regular Price $47.99 Special Price $42.89
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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.