CMMG AR-15 Zeroed Lower Parts Kit Gunbuilder's Kit
$77.36
Unlock limitless customization potential with the CMMG AR-15 Zeroed Lower Parts Kit, designed for builders looking to create their perfect AR-15 platform. This kit includes all essential mil-spec components, excluding the trigger guard, fire control group, and pistol grip, allowing you to personalize your setup. Installation is a breeze with all necessary hardware included and access to comprehensive guidance through interactive videos and detailed articles.
Out of stock
Customization is endless with the AR15 platform which is why the CMMG ZEROED Mk4/AR15 Gunbuilder’s Kit includes all of the essential parts except the most commonly upgraded ones: Trigger Guard Fire Control Group and Pistol Grip. Check out our interactive install walkthrough video below or read the CMMG Resources LPK Install article for an in-depth breakdown. All parts meet or exceed mil-spec. All installation hardware included.
Kit Includes:
- Bolt Catch Plunger Spring & Roll Pin
- Trigger/Hammer Retaining Pins
- ZEROED 60°/90° Adjustable Ambi Safety Detent & Spring
- ZEROED Ambi Magazine Catch & Spring
- ZEROED Magazine Release Button
- HD Pivot/Takedown Pins Detents & Springs
- Buffer Retainer & Spring
| Weight | 0.120 lbs |
|---|---|
| Dimensions | 8.250 × 7.250 × 1.750 in |
| Manufacturer | Cmmg Inc. |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.
Reviews
Clear filtersThere are no reviews yet.