Customization is endless with the AR15 platform, which is why the CMMG ZEROED Mk4/AR15 Gunbuilders 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. Specifications for CMMG AR-15 ZEROED Gunbuilder’s Lower Parts Kit: Manufacturer: CMMG Gun Make: AR Platform Gun Model: AR-15 Condition: New Package Contents: CMMG AR-15 ZEROED Gunbuilder’s Lower Parts Kit 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
6 reviews for CMMG AR-15 ZEROED Gunbuilder’s Lower Parts Kit
Only logged in customers who have purchased this product may leave a review.
Mark –
Great lit if you have a drop in trigger and grip, if using the cmmg lower grab the trigger guard too. Ambidextrous safety is a plus too since living in California I have to use the right side of the safety and actuate it with my finger.
ETXDMRguy –
I love the controls I have forever moved away from FCD and BAD to the CMMG Zeroed control set. Based on the price and the ergonomics. The fit and the install process are excellent.
Watt –
Everything fits, cant complain… love the ambi mag release
ETXDMRguy –
After trying SI, BAD, and FCD this is absolutely the best bang for the buck.The SI is the cheapest and it shows.The BAD is great but bulky.The FCD is the best but is over $300 without a FCU.The zeroed is the perfect balance of sturdy, lightweight, and ergonomics.
Mark Gordy –
I wanted to make sure by build had a quality ambidextrous parts kit and this worked out perfectly. Easy to use and good quality.
Jlev1029 –
Good quality and easy to use however the two detent pins were different colors and the safety is easy to incorrectly position