AR-15 – Field Repair Kit – OOPS Parts Kit – 1078425
PLEASE DOUBLE CHECK DETAILS AND FITMENT BEFORE PURCHASE.
The Caldwell AR “OOPS” Kit is a compact AR-15 field repair parts kit built around the tiny springs, pins, plungers, and detents that love to launch themselves into another zip code during assembly or maintenance. It is not glamorous. It is just the kind of kit that saves a build day from becoming a profanity recital.
Fitment
- Built for AR-15 platform field repair and lower parts replacement needs.
- Best used as a spare-parts kit for common AR-15 small parts that get lost, bent, or damaged during assembly.
- Verify compatibility with your specific AR-15 lower receiver and parts setup before ordering.
What it does
This kit gives you replacement AR-15 small parts for common “oops” moments: lost detents, runaway springs, roll pins, and other little troublemakers that can stop a build cold.
Why it’s worth it
Small parts are cheap until you need one right now. Keeping a kit like this in the bench drawer or range bag means less downtime, fewer half-finished projects, and fewer flashlight-on-the-floor search parties.
Specs
- Brand: Caldwell
- Product type: AR-15 field repair / spare parts kit
- Platform: AR-15
- UPC: 661120412687
- Manufacturer part number: 1078425
What’s included
- Bolt catch plunger, spring, and roll pin
- Buffer retainer and buffer retainer spring
- Disconnector spring
- Hammer spring, trigger spring, hammer pin, and trigger pin
- Pivot pin detent and spring
- Takedown pin detent and spring
- Selector detent and spring
- Trigger guard roll pin and magazine catch spring
Install notes
- Use proper punches, bench blocks, and eye protection when working with springs and roll pins.
- Function test the firearm after any parts replacement.
- If you are not comfortable working on fire-control or lower receiver parts, use a qualified armorer or gunsmith.
Verify before you buy
- Verify this kit matches your AR-15 platform needs.
- Confirm whether your build uses standard AR-15 small parts or proprietary receiver components.
- This is a repair/spare-parts kit, not a complete lower parts kit.
⚠ Trademark & Compatibility Disclaimer
IronKells Armory LLC is not affiliated with, endorsed by, or sponsored by any manufacturer mentioned. All trademarks are the property of their respective owners and are used only to identify compatibility and fitment information.
