In stock
CMMG Zeroed AR-15 Lower Parts Kit with Ambi Safety Selector
In stock

CMMG Zeroed AR-15 Lower Parts Kit with Ambi Safety Selector

Regular Price $180.59 Special Price $128.99
SKU 516551635149
Model Number 55CA642
Brand CMMG
UPC 810097502307
This product is fulfilled by a PSA Partner and shipping times may vary.
Customers must read Compliance Information before purchasing.

Product Details


  • Bolt catch/roll pin
  • Bolt catch plunger/spring
  • Trigger guard/roll pin
  • Trigger, Trigger spring
  • Disconnector, Disconnector spring
  • Hammer, Hammer spring
  • Trigger/hammer retaining pins
  • AmbiSafety, detent, & spring
  • Magazine catch, spring, & release button
  • Pivot/takedown pins, detents, & springs
  • A2style pistol grip/grip screw & washer
  • Buffer retainer/spring


All the parts you need to get started on your next AR15 build in convenient color-coded packets to simplify assembly.


Q & A


Shipping Restrictions

It is the customer’s responsibility for understanding state laws regarding all purchases made. For a comprehensive list of all Shipping Restrictions, please refer to our Shipping Restrictions By State Page found Here.

All NFA Rules Apply

These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.