1911 AUTO “Factory Plus” Mainspring Caps – Part #874218003050

Overview
Upgrade your 1911 pistol with the 1911 AUTO “Factory Plus” Mainspring Caps (UPC 874218003050). Engineered to meet original equipment manufacturer (OEM) specifications, these caps provide a secure, precise fit for the recoil spring assembly, ensuring consistent performance and reliable cycling in every shot.
Key Features & Benefits
- Precision Engineering: CNC‑machined from high‑grade steel for exact tolerances and a perfect fit on all standard 1911 models.
- Enhanced Durability: Heat‑treated surface treatment resists wear, corrosion, and deformation under high‑stress firing conditions.
- Factory‑Level Performance: Designed as a direct replacement for original factory caps, maintaining the feel and reliability of a brand‑new 1911.
- Easy Installation: No special tools required – simply slide the caps into the mainspring housing and secure with the existing spring pins.
- Optimized Recoil Management: Improves spring retention, reducing the chance of slippage and ensuring smooth slide action.
Compatibility
These caps are compatible with all standard 1911 pistols that use a single‑stage mainspring configuration, including but not limited to:
- Colt 1911 Government
- Springfield Armory 1911 Series
- Kimber 1911 models
- Custom 1911 builds with factory‑spec mainspring housings
Technical Specifications
| Specification | Detail |
|---|
| Part Number | 874218003050 |
| UPC | 874218003050 |
| Material | High‑strength carbon steel (C45 or equivalent) |
| Finish | Black phosphate coating with anti‑corrosion treatment |
| Weight | ≈ 0.03 lb (13 g) per pair |
| Quantity | 2 caps (pair) |
| Dimensions | Standard 1911 mainspring cap dimensions – 0.200" × 0.125" |
Why Choose 1911 AUTO “Factory Plus”?
When reliability is non‑negotiable, the Factory Plus line from 1911 AUTO delivers the confidence that professionals, competitive shooters, and tactical operators demand. By preserving the original feel of your firearm while extending the life of the mainspring assembly, these caps are an essential upgrade for anyone seeking peak performance from their 1911 platform.
Installation Guide
- Ensure the pistol is unloaded and the slide is locked back.
- Remove the existing mainspring caps from the spring housing.
- Insert the new 1911 AUTO caps, aligning the notches with the spring pins.
- Re‑install the mainspring and pins, confirming a snug fit.
- Cycle the slide several times to verify smooth operation.
Customer Support
Our dedicated support team is ready to assist with any questions regarding fitment, installation, or performance. Reach out via email or call 1‑800‑123‑4567.