AR-15 – Upper Pins and Springs Kit – Mil-Spec
PLEASE DOUBLE CHECK DETAILS AND FITMENT BEFORE PURCHASE.
The CMMG AR-15 upper pins and springs kit is a small-parts kit for compatible mil-spec AR-15 upper receivers. It is useful for builds, repairs, and keeping spares on hand before one spring disappears into the fourth dimension.
Fitment
- For AR-15 style rifles / compatible mil-spec AR-15 upper receiver parts.
What it does
This kit supplies common upper receiver pins and springs used around the front sight, forward assist, extractor, and ejector systems.
Why it’s worth it
Small parts are cheap until you lose one and your build stops dead. This kit keeps the common upper receiver pins and springs together so you are not buying one tiny part at a time like a punished man.
Specs
- Brand: CMMG
- Platform: AR-15
- Kit type: Upper pins and springs
- Parts standard: Meets or exceeds mil-spec, per CMMG listing
What’s included
- Front sight detent
- Front sight spring
- Forward assist spring
- Extractor spring
- Extractor buffer
- Extractor pin
- Ejector
- Ejector/selector spring
- Ejector pin
Tools needed
Punch set, bench block, small hammer, AR bolt/upper service tools where applicable, and safety glasses.
Install notes
Install only into compatible AR-15 upper receiver and bolt components. Confirm extractor/ejector movement and upper function before live fire.
Verify before you buy
Verify this kit matches the AR-15 upper parts you are servicing. This is not a lower receiver kit.
⚠ 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.