AR-15 Lower Parts Kit – Missing Parts Small Springs & Detents Kit
PLEASE DOUBLE CHECK DETAILS AND FITMENT BEFORE PURCHASE.
The KAK Industry AR-15 Missing Parts Kit is the little-parts rescue bag for standard AR-15 lower receiver builds. It includes the small detents, springs, and retainers that tend to vanish during assembly, maintenance, or “I swear it was right here” moments.
This is not a full lower parts kit. It is a replacement/spare parts kit for the tiny AR-15 lower components that get lost, worn, or needed during a build.
Fitment
- Fits standard AR-15 lower receiver small-parts replacement needs.
- Useful for AR-15 builds, bench spares, and replacing lost lower receiver detents/springs.
- Verify the exact missing part before purchase.
- This is not a complete lower parts kit.
What it does
This kit keeps common AR-15 lower receiver replacement parts on hand so a lost spring or detent does not stop the whole build. It is cheap insurance for the bench, range bag, or parts drawer.
Why it’s worth it
AR detents are tiny little escape artists. Having spares keeps a build moving instead of forcing a second order over a spring that launched itself into another zip code.
Specs
- Brand: KAK Industry
- Product type: AR-15 missing parts kit
- Platform: AR-15
- Use: Lower receiver small parts replacement/spares
- Manufacturer SKU: AR15-LP-KT-04
- UPC: 811163035774
- Country of manufacture: USA listed by retailer data
What’s included
- Buffer retainer: 1 each
- Takedown / pivot pin detent: 4 each
- Selector detent: 2 each
- Selector / ejector detent spring: 2 each
- Disconnector spring: 2 each
- Takedown / pivot pin detent spring: 6 each
- Buffer retainer spring: 1 each
- Bolt catch spring: 2 each
- Bolt catch detent: 1 each
Tools needed
Basic AR lower tools are recommended, including punches and eye protection. These parts are small, spring-loaded, and apparently trained by ninjas.
Install notes
Install carefully and perform a proper function check after replacing any lower receiver component. If you are unsure what part you need, stop and confirm before ordering.
Verify before you buy
Verify this kit contains the specific small part you need. It is meant for replacement/spares, not as a complete AR-15 lower build 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 or fitment.
⚠ 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.
