AR-15 – Oops Replacement Kit – Lost Pins/Springs/Detents – Black
PLEASE DOUBLE CHECK DETAILS AND FITMENT BEFORE PURCHASE.
This Doublestar Corp. AR-15 Oops Replacement Kit is a compact spare-parts kit for the tiny pins, springs, detents, and small parts that disappear during builds, repairs, and maintenance. If you have ever launched a takedown detent into orbit, this kit makes immediate sense.
This is a convenience kit for common lost or damaged AR-15 small parts. It is not a complete lower parts kit, not a bolt carrier rebuild kit, and not a full rifle repair solution.
Fitment
- Fits standard AR-15 pattern small-parts replacement needs.
- Useful for AR-15 lower receiver assembly, repairs, and range-bag spare parts.
- Built around commonly lost or damaged AR-15 pins, springs, and detents.
Does NOT fit
- Not a complete lower parts kit.
- Not a complete field repair kit.
- Not for AR-10/LR-308 platforms unless individual parts are separately verified compatible.
- May not fit proprietary AR-style receivers using non-standard parts.
What it does
This kit gives you backups for the small AR-15 parts most likely to get lost or damaged during maintenance and assembly. It helps keep a build or repair from stopping dead because a tiny part decided to achieve flight.
Why it’s worth it
The practical value is convenience. Having replacement springs, detents, and small pins on hand keeps your bench moving and your rifle from sitting unfinished over a part that costs less than lunch but somehow ruins the whole day.
Specs
- Brand: Doublestar Corp.
- Platform: AR-15
- Type: Oops replacement kit
- Use: Lost/damaged small-parts replacement
- Finish: Black
What’s included
- Commonly lost or damaged AR-15 replacement parts
- Retailer-confirmed examples include takedown detents, takedown detent springs, buffer detents, buffer detent springs, firing pin retainers, selector detents, selector detent springs, and extractor springs with pads
Tools needed
- Small punch set
- Bench block recommended
- Pivot pin tool recommended
- Safety glasses recommended
Install notes
Match the replacement part to the original part before installation. After replacing any control, fire-control-related, or retention part, perform a proper safety and function check before live fire.
Verify before you buy
Verify that your firearm uses standard AR-15 small parts. If you are working on a proprietary lower, specialty receiver set, or non-standard AR platform, confirm compatibility before ordering.
⚠ Install & Compatibility Disclaimer
Installation should be performed by a qualified armorer or gunsmith. Improper installation, modification, or use may affect firearm safety and reliability. Buyer is responsible for verifying compatibility, performing proper function testing, and ensuring safe operation.
