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

Gun Improvement Kits

Enhance your shooting experience with our comprehensive range of gun improvement kits. Designed for firearm enthusiasts and professionals alike, these kits offer an array of components to upgrade your weapon's performance and reliability. Whether you're looking to fine-tune your trigger system, improve accuracy, or add tactical accessories, our selection of gun improvement kits has everything you need to take your firearm to the next level. Discover the perfect kit to match your needs and enjoy a superior shooting experience.

Read More

per page
  1. E2 Grip Upgrade Kit for P226 (DA/SA)
    E2 Grip Upgrade Kit for P226 (DA/SA)
    5
    (164)
    $39.99
    View Product
  2. P365 9MM SLIDE CORROSION RESISTANT SLIDE COMPLETION KIT
    P365 9MM SLIDE CORROSION RESISTANT SLIDE COMPLETION KIT
    5
    (67)
    $99.99
    View Product
  3. P365X CONTROLS PARTS KIT - GOLD
    P365X CONTROLS PARTS KIT - GOLD
    5
    (52)
    $149.99
    FREE SHIPPING ON ORDERS OF $100+
    View Product
  4. Parts Kit, P226, 9mm
    Parts Kit, P226, 9mm
    5
    (42)
    $49.99
    View Product
  5. P365 Flat Trigger KIT
    P365 Flat Trigger KIT
    5
    (202)
    $49.99
    View Product
  6. P320 Flat Trigger
    P320 Flat Trigger
    5
    (179)
    $49.99
    View Product
  7. Short Reset Trigger Parts Kit - P226, P227, P229, P228
    Short Reset Trigger Parts Kit - P226, P227, P229, P228
    5
    (173)
    $49.99
    View Product
  8. E2 Grip Upgrade Kit for P229 (DA/SA)
    E2 Grip Upgrade Kit for P229 (DA/SA)
    5
    (118)
    $39.99
    View Product
  9. P320 FLAT SKELETONIZED ENHANCED TRIGGER - GOLD
    P320 FLAT SKELETONIZED ENHANCED TRIGGER - GOLD
    5
    (100)
    $99.99
    View Product
  10. P320 Slide Catch Assembly Kit - 9/40/357
    P320 Slide Catch Assembly Kit - 9/40/357
    5
    (78)
    $29.99
    View Product
  11. P320-XFIVE TXG CALIBER X-CHANGE KIT
    P320-XFIVE TXG CALIBER X-CHANGE KIT
    5
    (71)
    $749.99 $799.99
    FREE SHIPPING ON ORDERS OF $100+
    View Product
  12. P365 TRIGGER KIT - CURVED
    P365 TRIGGER KIT - CURVED
    5
    (70)
    $29.99
    View Product
  13. M17 CONVERSION KIT (9MM)
    M17 CONVERSION KIT (9MM)
    5
    (67)
    $499.99 $549.99
    FREE SHIPPING ON ORDERS OF $100+
    View Product
  14. Short Reset Trigger Parts Kit - P220
    Short Reset Trigger Parts Kit - P220
    5
    (65)
    $49.99
    View Product
  15. E2 Grip Upgrade Kit for P220 (DA/SA)
    E2 Grip Upgrade Kit for P220 (DA/SA)
    5
    (62)
    $39.99
    View Product
  16. P365-XMACRO COMP CAL-X KIT, BLACK
    P365-XMACRO COMP CAL-X KIT, BLACK
    5
    (48)
    $619.99
    FREE SHIPPING ON ORDERS OF $100+
    View Product
  17. SIG MCX/MPX Tool kit - FIX IT STICKS
    SIG MCX/MPX Tool kit - FIX IT STICKS
    5
    (36)
    $179.99
    FREE SHIPPING ON ORDERS OF $100+
    View Product
  18. TREAD M400 TWO-STAGE TRIGGER UPGRADE KIT
    TREAD M400 TWO-STAGE TRIGGER UPGRADE KIT
    5
    (36)
    $119.99
    FREE SHIPPING ON ORDERS OF $100+
    View Product
  19. P220, P226, P229 SHORT PHOSPHATE-COATED TRIGGER
    P220, P226, P229 SHORT PHOSPHATE-COATED TRIGGER
    5
    (32)
    $59.99
    View Product
  20. P320 9/357 SLIDE CORROSION RESISTANT SLIDE COMPLETION KIT
    P320 9/357 SLIDE CORROSION RESISTANT SLIDE COMPLETION KIT
    5
    (32)
    $99.99
    View Product
  21. Trigger Kit, AR, Two Stage Match Duo
    Trigger Kit, AR, Two Stage Match Duo
    5
    (32)
    $189.99
    FREE SHIPPING ON ORDERS OF $100+
    View Product
  22. MCX-SPEAR LT 11.5 UPPER AR CONVERSION KIT 5.56 NATO-BLACK
    MCX-SPEAR LT 11.5 UPPER AR CONVERSION KIT 5.56 NATO-BLACK
    5
    (31)
    $1699.99
    FREE SHIPPING ON ORDERS OF $100+
    Out of stock
    Compare
  23. Parts Kit, P229, .357SIG, .40 AUTO
    Parts Kit, P229, .357SIG, .40 AUTO
    4
    (31)
    $49.99
    View Product
  24. P320 CONTROLS PARTS KIT - HIGH POLISH GOLD
    P320 CONTROLS PARTS KIT - HIGH POLISH GOLD
    5
    (30)
    $149.99
    FREE SHIPPING ON ORDERS OF $100+
    View Product

Related Pages

  1. Rifle Customization Kits
    Rifle Customization Kits
    View Product
  2. Firearm Accessory Kits
    Firearm Accessory Kits
    View Product
  3. Pistol Customization Kits
    Pistol Customization Kits
    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.