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CMMG Product #55CA6BA

ZEROED Lower Parts Kit, AR15, Gunbuilder's Kit

PRODUCT #55CA6BA

$89.95
Free Shipping over $150.00

Product Restrictions

Some states and localities have suppressor purchase and/or possession regulations. Review  NFA Product Restrictions prior to ordering.

To avoid delays, verify your local FFL can transfer NFA items before ordering.  Find a Dealer Any additional fees, delays, or requirements must be handled directly between you and your transferring FFL.


Processing Time
Please allow 15-30 days to process and ship your order.

WARNING: Cancer and Reproductive Harm | https://www.p65warnings.ca.gov/

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Commonly Purchased with ZEROED Lower Parts Kit, AR15, Gunbuilder's Kit

Receiver Extension Kit, Carbine, AR15
Receiver Extension Kit, Carbine, AR15
Starting at $74.95
Screw, 1/4-28 x 1"Lg., Pistol Grip, AR15
Screw, 1/4-28 x 1"Lg., Pistol Grip, AR15
Starting at $1.49
Washer, Star, 1/4 Screw, Pistol Grip
Washer, Star, 1/4 Screw, Pistol Grip
Starting at $1.49
Nut, Receiver Extension, M4
Nut, Receiver Extension, M4
Starting at $8.95
ZEROED Ambi Charging Handle, AR15
ZEROED Ambi Charging Handle, AR15
Starting at $79.95
ZEROED Pistol Grip
ZEROED Pistol Grip
Starting at $17.95
ZEROED Trigger Guard Kit
ZEROED Trigger Guard Kit
Starting at $7.95
Magazine, Mk4/AR15, 22LR, 25rd
Magazine, Mk4/AR15, 22LR, 25rd
Starting at $24.95
ZEROED Anti-Walk Trigger Pins
ZEROED Anti-Walk Trigger Pins
Starting at $9.95
Magazine, AR15, 9mm, 33rd, Gen II
Magazine, AR15, 9mm, 33rd, Gen II
Starting at $29.95

ZEROED Lower Parts Kit, AR15, Gunbuilder's Kit

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
 

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