SIG CROSS RIFLE – Bolt Action Hunting Cross Rifle
Search
Dealer Locator
My Cart
Sign In
Menu

5.56 Accessories

Enhance your shooting experience with our selection of top-quality 5.56 accessories designed to optimize your firearm's performance and functionality. Whether you're looking to upgrade your rifle with precision optics, reliable ammunition, or advanced suppressors, we have a range of accessories to suit every shooter's needs. From tactical enhancements to premium gear, explore our collection and take your shooting game to the next level.

per page
  1. TREAD 3-CHAMBER COMPENSATOR, 5.56 MM, 1/2 X 28
    TREAD 3-CHAMBER COMPENSATOR, 5.56 MM, 1/2 X 28
    4
    (39)
    $79.99
    View Product
  2. SIG MCX BOLT ASSY, TAPERED LUG, 5.56/.300
    SIG MCX BOLT ASSY, TAPERED LUG, 5.56/.300
    5
    (4)
    $199.99
    FREE SHIPPING ON ORDERS OF $100+
    View Product
  3. MCX VIRTUS PISTON ASSEMBLY, 14IN BARREL - 5.56 NATO
    MCX VIRTUS PISTON ASSEMBLY, 14IN BARREL - 5.56 NATO
    $299.99
    FREE SHIPPING ON ORDERS OF $100+
    View Product
  4. MCX VIRTUS PISTON ASSEMBLY, 16IN BARREL - 5.56 NATO
    MCX VIRTUS PISTON ASSEMBLY, 16IN BARREL - 5.56 NATO
    3
    (2)
    $299.99
    FREE SHIPPING ON ORDERS OF $100+
    View Product
  5. MCX Rattler 5.5" Caliber exchange kit - 5.56NATO
    MCX Rattler 5.5" Caliber exchange kit - 5.56NATO
    5
    (9)
    $699.99
    FREE SHIPPING ON ORDERS OF $100+
    View Product
  6. MCX/M400 5.56 NATO 30RD MAGAZINE - WINDOWED - GEN M3 PMAG-MAGPUL
    MCX/M400 5.56 NATO 30RD MAGAZINE - WINDOWED - GEN M3 PMAG-MAGPUL
    5
    (18)
    $29.99
    View Product
  7. MCX/M400 5.56 NATO 30RD MAGAZINE - GEN M2 PMAG-MAGPUL
    MCX/M400 5.56 NATO 30RD MAGAZINE - GEN M2 PMAG-MAGPUL
    5
    (30)
    $29.99
    View Product
  8. MCX/M400 5.56 NATO 30RD MAGAZINE - GEN M3 PMAG-MAGPUL
    MCX/M400 5.56 NATO 30RD MAGAZINE - GEN M3 PMAG-MAGPUL
    5
    (52)
    $29.99
    View Product
  9. MCX/M400 5.56 NATO 30RD MAGAZINE - WINDOWED COYOTE - GEN M3 PMAG-MAGPUL
    MCX/M400 5.56 NATO 30RD MAGAZINE - WINDOWED COYOTE - GEN M3 PMAG-MAGPUL
    5
    (10)
    $29.99
    View Product
  10. MCX/M400 5.56 NATO 30RD MAGAZINE - WINDOWED FDE - GEN M3 PMAG-MAGPUL
    MCX/M400 5.56 NATO 30RD MAGAZINE - WINDOWED FDE - GEN M3 PMAG-MAGPUL
    5
    (12)
    $29.99
    View Product
  11. M4 / AR15 - 5.56 / .223 MAGAZINE LOADER AND UNLOADER - MAGLULA
    M4 / AR15 - 5.56 / .223 MAGAZINE LOADER AND UNLOADER - MAGLULA
    5
    (74)
    $29.99
    View Product
  12. Clutch-Lok Tapered QD Flash hider for SLX/SLH suppressors - 5.56MM
    Clutch-Lok Tapered QD Flash hider for SLX/SLH suppressors - 5.56MM
    5
    (1)
    $157.49
    FREE SHIPPING ON ORDERS OF $100+
    View Product
  13. Clutch-Lok Shouldered QD Flash hider for SLX/SLH suppressors - 5.56MM
    Clutch-Lok Shouldered QD Flash hider for SLX/SLH suppressors - 5.56MM
    5
    (4)
    $157.49
    FREE SHIPPING ON ORDERS OF $100+
    View Product
  14. Clutch-Lok Tapered QD Muzzle Brake for SLX/SLH suppressors - 5.56MM
    Clutch-Lok Tapered QD Muzzle Brake for SLX/SLH suppressors - 5.56MM
    $157.49
    FREE SHIPPING ON ORDERS OF $100+
    View Product
  15. Clutch-Lok Shouldered QD Muzzle Brake for SLX/SLH suppressors - 5.56MM
    Clutch-Lok Shouldered QD Muzzle Brake for SLX/SLH suppressors - 5.56MM
    5
    (6)
    $157.49
    FREE SHIPPING ON ORDERS OF $100+
    View Product
  16. 5.56 FLASH HIDER MUZZLE COMPENSATOR COMBO - FDE
    5.56 FLASH HIDER MUZZLE COMPENSATOR COMBO - FDE
    5
    (5)
    $79.99
    View Product
  17. SIG MCX-SPEAR LT 16" 5.56 NATO BARREL AND GAS BLOCK ASSEMBLY
    SIG MCX-SPEAR LT 16" 5.56 NATO BARREL AND GAS BLOCK ASSEMBLY
    5
    (7)
    $899.99
    FREE SHIPPING ON ORDERS OF $100+
    View Product

Related Products

  1. LEGION - BLACK RIPSTOP HAT
    LEGION - BLACK RIPSTOP HAT
    View Product
  2. LEGION - DARK GRAY HAT
    LEGION - DARK GRAY HAT
    View Product
  3. LEGION - EMBROIDERED HAT
    LEGION - EMBROIDERED HAT
    View Product

Related Pages

  1. 5.56 Muzzle Accessories
    5.56 Muzzle Accessories
    View Product
  2. Ar 15 Accessories
    Ar 15 Accessories
    View Product
  3. 5.56 Magazines
    5.56 Magazines
    View Product
Sign Up for News and Updates
InstagramYouTubeLinkedIn SIG SAUER Social
Also of Interest
© SIG SAUER 2025. All Rights Reserved.
Compare Products
Items
Launch Compare

Zip Code Verification

Some states have legal restrictions for the purchase of items so we need to ask for your location.

Age Verification

Some products have purchase restrictions for those under the age of 21, please verify your age.