1. Swenson Mainspring Housing Flat Checkered with Magazine Well 1911 Officer
    Swenson Mainspring Housing Flat Checkered with Magazine Well 1911 O...
    $69.99
    Available View More Options
  2. Ed Brown Mainspring Housing Flat 1911 Officer 25 LPI Checkered
    Ed Brown Mainspring Housing Flat 1911 Officer 25 LPI Checkered 5.0 (5 Reviews)
    $54.99
    Available View More Options
  3. Ed Brown Mainspring Housing Flat 1911 Officer Chainlink
    Ed Brown Mainspring Housing Flat 1911 Officer Chainlink 3.0 (8 Reviews)
    $49.99
    Available View More Options
  4. Ed Brown Mainspring Housing Flat with Drop-In Maxi-Well 1911 Officer Snakeskin
    Ed Brown Mainspring Housing Flat with Drop-In Maxi-Well 1911 Office... 5.0 (2 Reviews)
    $79.99
    Available View More Options
  5. Nighthawk Custom Mainspring Housing and Magwell 1911 Officer 1 Piece 20 LPI Checkering Stainless
    Nighthawk Custom Mainspring Housing and Magwell 1911 Officer 1 Piec...
    $149.99
    Available
  6. Ed Brown Mainspring Housing Flat with Drop-In Maxi-Well 1911 Officer Chainlink
    Ed Brown Mainspring Housing Flat with Drop-In Maxi-Well 1911 Office...
    $79.99
    Available View More Options
  7. Ed Brown Mainspring Housing Flat with Drop-In Maxi-Well 1911 Officer 25 LPI
    Ed Brown Mainspring Housing Flat with Drop-In Maxi-Well 1911 Office... 5.0 (3 Reviews)
    $84.99
    Mixed Availability View More Options
  8. Wilson Combat Mainspring Housing Flat 1911 Officer Checkered 20 LPI
    Wilson Combat Mainspring Housing Flat 1911 Officer Checkered 20 LPI 4.4 (14 Reviews)
    $46.99 - $48.99
    Mixed Availability View More Options
  9. Ed Brown Mainspring Housing Flat 1911 Officer Snakeskin
    Ed Brown Mainspring Housing Flat 1911 Officer Snakeskin 5.0 (2 Reviews)
    $49.99
    Available View More Options
  10. Wilson Combat Factory Plus Mainspring Housing Pin 1911
    Wilson Combat Factory Plus Mainspring Housing Pin 1911 5.0 (9 Reviews)
    $2.99 - $3.99
    Available View More Options
  11. Wilson Combat Factory Plus Mainspring Housing Pin Retainer 1911 Government, Commander
    Wilson Combat Factory Plus Mainspring Housing Pin Retainer 1911 Gov... 4.2 (6 Reviews)
    $2.99 - $3.99
    Available View More Options
  12. Nighthawk Custom Mainspring Housing Flat with Magazine Well 1911 Officer Scalloped Steel Blue
    Nighthawk Custom Mainspring Housing Flat with Magazine Well 1911 Of... 5.0 (2 Reviews)
    $79.99
    Out of Stock, Backorder OK
    What are product arrival notifications?
  13. Hogue Mainspring Housing Arched 1911 Officer Checkered Aluminum Matte Black
    Hogue Mainspring Housing Arched 1911 Officer Checkered Aluminum Mat... 5.0 (7 Reviews)
    $42.46
    Available
  14. Wilson Combat Mainspring Housing Flat 1911 Officer Round Butt Steel
    Wilson Combat Mainspring Housing Flat 1911 Officer Round Butt Steel 3.0 (2 Reviews)
    $56.99 - $58.99
    Mixed Availability View More Options
  15. Nighthawk Custom Mainspring Housing with T3 Magazine Well 1911 Officer Serrated
    Nighthawk Custom Mainspring Housing with T3 Magazine Well 1911 Offi... 5.0 (1 Review)
    $99.99
    Out of Stock View More Options
  16. Ed Brown Mainspring Housing Flat 1911 Officer Smooth
    Ed Brown Mainspring Housing Flat 1911 Officer Smooth 2.0 (1 Review)
    $34.99
    Available View More Options
  17. Cylinder & Slide Mainspring Housing Pin 1911 Steel Blue Package of 2
    Cylinder & Slide Mainspring Housing Pin 1911 Steel Blue Package of 2 4.0 (3 Reviews)
    $2.99
    Available
  18. Wilson Combat Bullet Proof Mainspring Housing with Magazine Well One Piece 1911 Officer 30 LPI Ch...
    Wilson Combat Bullet Proof Mainspring Housing with Magazine Well On...
    $183.99 - $188.99
    Mixed Availability View More Options
  19. Nighthawk Custom Mainspring Housing Flat with Magazine Well 1911 Officer Serrated Steel
    Nighthawk Custom Mainspring Housing Flat with Magazine Well 1911 Of... 4.8 (4 Reviews)
    $79.99
    Mixed Availability View More Options
  20. Cylinder & Slide Mainspring Housing Pin Retainer 1911 Blue Pack of 2
    Cylinder & Slide Mainspring Housing Pin Retainer 1911 Blue Pack of 2 4.7 (3 Reviews)
    $2.99
    Available
  21. Hogue Mainspring Housing Flat 1911 Officer Checkered Aluminum Matte Black
    Hogue Mainspring Housing Flat 1911 Officer Checkered Aluminum Matte... 5.0 (3 Reviews)
    $42.46
    Special Order
  22. Nighthawk Custom Mainspring Housing Flat 1911 Officer Scalloped Steel Blue
    Nighthawk Custom Mainspring Housing Flat 1911 Officer Scalloped Ste... 5.0 (3 Reviews)
    $44.99
    Out of Stock, Backorder OK
    What are product arrival notifications?
  23. Smith & Wesson Mainspring Housing Pin Retainer 1911 Blue
    Smith & Wesson Mainspring Housing Pin Retainer 1911 Blue 5.0 (1 Review)
    $1.99
    Available
  24. Ed Brown Mainspring Housing Flat with Drop-In Maxi-Well 1911 Officer Smooth
    Ed Brown Mainspring Housing Flat with Drop-In Maxi-Well 1911 Office...
    $64.99
    Special Order View More Options
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