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Mfg Item #: 55CA642
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Kit Includes: ZEROED Extended Bolt Catch AR15Bolt Catch Plunger, Spring, & Roll Pin, ZEROED Trigger Guard, Screw, & Roll PIn, Trigger & Trigger Spring, Disconnector & Disconnector Spring, Hammer & Hammer Spring, Trigger/Hammer Retaining Pins, ZEROED 60/90 Adjustable Ambi Safety, Detent, & Spring, ZEROED Ambi Magazine Catch & Spring, ZEROED Extended Magazine Release Button, HD Pivot/Takedown Pins, Detents, & Springs, ZEROED Pistol Grip, Grip Screw, & Washer, Buffer Retainer & Spring. Finish your next AR15 lower receiver with the CMMG ZEROED Mk4/AR15 lower parts kit. Every piece is made here in the USA and comes in convenient color-coded packets to make assembly a breeze. Check out our interactive install walkthrough video below or read the CMMG Resources LPK Install article for an in-depth breakdown. Dont forget a Buttstock or Brace kit to complete your pistol or rifle lower. All parts meet or exceed mil-spec. All installation hardware included.
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ATTENTION: If you are ordering the last of an available quantity and you do not check with an associate of Crossroads Firearms before placing your order. You may be at risk of getting a full refund/ cancellation if our in house inventory or distributors are out of stock before your online order has been processed.