AR-15 Lower Parts Kit – Basic Ambidextrous Build Kit
PLEASE DOUBLE CHECK DETAILS AND FITMENT BEFORE PURCHASE.
The KAK Industry AR-15 Basic Ambidextrous Build Kit is a lower parts kit built for standard AR-15 lower receiver builds. It includes the core small parts needed for a basic lower assembly, plus an ambidextrous selector for left- or right-hand operation.
This is the kit for builders who want the essentials without buying extra parts they do not need. Clean, practical, and made for getting the lower receiver together without turning the bench into a spring-launching crime scene.
Fitment
- Fits standard AR-15 lower receiver builds.
- Includes ambidextrous selector components for left- or right-hand selector operation.
- Verify your receiver and build plan before purchase.
- Does not include every possible upgraded control or trigger group component unless specifically listed below.
What it does
This kit supplies the core pins, detents, springs, magazine catch parts, bolt catch parts, buffer retainer parts, and ambidextrous selector hardware needed for a basic AR-15 lower build.
Why it’s worth it
The value is simple: it gives the builder the right lower small parts in one bag instead of forcing a scavenger hunt across the workbench. The ambidextrous selector adds practical control for left-handed shooters or anyone who likes mirrored control access.
Specs
- Brand: KAK Industry
- Product type: AR-15 lower parts kit
- Platform: AR-15
- Selector type: Ambidextrous safety selector
- Manufacturer SKU: AR15-LP-KT-03
- UPC: 811163035828
- Made in USA where listed by KAK/retailer data
What’s included
- Bolt catch kit
- Magazine catch kit
- Takedown pin detent and spring
- Pivot pin detent and spring
- Buffer retainer pin and spring
- Ambidextrous selector detent and spring
- Hammer and trigger pins
- Hammer, trigger, and disconnect spring components
- Other lower small parts included in KAK’s basic ambi build kit package
Tools needed
AR lower assembly tools are strongly recommended, including punches, bench block, armorer’s tool where needed, and proper eye protection. Small springs and detents have a spiritual need to disappear forever.
Install notes
Assembly should be done carefully and function checked before live fire. For best results with the ambi selector, retailer guidance notes degreasing the selector screw threads and using blue threadlocker during installation.
Verify before you buy
Verify this kit matches your AR-15 lower receiver and build plan. If you need a complete enhanced kit, upgraded trigger, grip, or specialty controls, confirm those parts are included before ordering.
⚠ 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.
