CMMG  |  SKU: RSR-CMMG55CA642

CMMG - ZEROED Lower Parts Kit for AR15

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Description

The CMMG ZEROED Lower Parts Kit is designed for AR15 enthusiasts looking to complete their lower receiver with high-quality components. This comprehensive kit includes all the essential parts needed for assembly, each made in the USA and packaged in convenient color-coded packets for easy identification and installation. All components meet or exceed mil-spec standards, ensuring reliability and performance.

The kit features the innovative ZEROED Extended Bolt Catch and an adjustable ambidextrous safety selector that can be set to 60° or 90°, providing versatility and ease of use. The inclusion of a ZEROED ambidextrous magazine catch and extended magazine release button further enhances the functionality of your AR15 build.

Whether you're building a new rifle or upgrading an existing one, this kit provides all the necessary parts, including a ZEROED pistol grip with grip screw, heavy-duty pivot/takedown pins, and a buffer retainer with spring. Don't forget to pair it with a buttstock or brace kit to complete your setup.

Key Features

  • Color: Black
  • Made in: USA
  • Includes: ZEROED Extended Bolt Catch, Bolt Catch Plunger, Spring, & Roll Pin
  • Trigger Components: Trigger, Trigger Spring, Disconnector, Disconnector Spring, Hammer, Hammer Spring
  • Ambidextrous Safety: 60°/90° Adjustable with Detent & Spring
  • Magazine Catch: ZEROED Ambi Magazine Catch & Spring, Extended Magazine Release Button
  • Pistol Grip: ZEROED Pistol Grip & Grip Screw
  • Installation: All hardware included
  • Compatibility: AR15/Mk4 Lower Receivers

Specifications

  • Type: Lower Parts Kit
  • SubCategory: Long Gun Parts
  • Model: Zeroed Lower Parts Kit
  • Product UPC: 810097502307
  • Manufacturers Part Number: 55CA642

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Frequently Asked Questions

What components are included in the CMMG ZEROED Lower Parts Kit for AR15?

The CMMG ZEROED Lower Parts Kit includes a comprehensive set of components necessary for completing an AR15 lower receiver. This includes the ZEROED Extended Bolt Catch, ambidextrous magazine catch, and an adjustable ambidextrous safety selector. Additionally, it comes with essential trigger components such as the trigger, hammer, and their respective springs. The kit also features a ZEROED pistol grip with a grip screw, heavy-duty pivot and takedown pins, and a buffer retainer with spring. All parts are packaged in color-coded packets for easy identification and installation, ensuring that each component meets or exceeds mil-spec standards.

How does the adjustable ambidextrous safety selector enhance the AR15's functionality?

The adjustable ambidextrous safety selector in the CMMG ZEROED Lower Parts Kit provides significant versatility and ease of use. It can be set to either a 60° or 90° throw, allowing users to customize the safety mechanism to their preference or tactical needs. This feature is particularly beneficial in high-stress situations where quick and reliable operation is crucial. By accommodating both left and right-handed shooters, the ambidextrous design ensures that the safety selector is accessible and intuitive, enhancing the overall functionality of your AR15 build.

What makes the ZEROED Extended Bolt Catch unique compared to standard bolt catches?

The ZEROED Extended Bolt Catch in the CMMG kit stands out due to its enhanced design for improved ergonomics and functionality. Unlike standard bolt catches, the extended design allows for easier manipulation, particularly in rapid reload scenarios. This is especially advantageous for shooters wearing gloves or operating under stress, where quick and reliable access to the bolt catch can make a significant difference. The extended bolt catch is engineered to provide a more intuitive and efficient user experience, contributing to faster and more seamless operation of the rifle.

How does the ZEROED ambidextrous magazine catch improve magazine changes?

The ZEROED ambidextrous magazine catch enhances magazine changes by allowing operation from either side of the rifle. This feature is crucial for left-handed shooters or those who train to switch shoulders for tactical advantage. The ambidextrous design ensures that the magazine release is accessible regardless of the shooting stance, facilitating quicker and more efficient magazine swaps. This can be particularly beneficial in competitive shooting or tactical scenarios where speed and efficiency are paramount.

Why is it important that the CMMG ZEROED Lower Parts Kit components meet mil-spec standards?

Meeting mil-spec standards ensures that the components in the CMMG ZEROED Lower Parts Kit are reliable and durable. Mil-spec, or military specification, sets a benchmark for quality and performance, ensuring that parts can withstand rigorous use and environmental conditions. For AR15 enthusiasts, this means confidence in the longevity and functionality of their build, whether used for recreational shooting, hunting, or tactical applications. Mil-spec components are designed to perform consistently under stress, providing peace of mind that the rifle will function as expected when it matters most.

What are the benefits of the ZEROED pistol grip included in the kit?

The ZEROED pistol grip offers enhanced ergonomics and control for the shooter. Designed to provide a comfortable and secure hold, the grip helps reduce fatigue during extended shooting sessions. Its design allows for a natural hand position, which can improve accuracy and control over the rifle. The grip also includes a grip screw for secure attachment, ensuring it remains firmly in place during operation. This ergonomic enhancement is particularly beneficial for maintaining precision and comfort in both tactical and recreational shooting environments.

How does the color-coded packaging of the CMMG ZEROED Lower Parts Kit assist in assembly?

The color-coded packaging of the CMMG ZEROED Lower Parts Kit simplifies the assembly process by making it easier to identify components. Each packet is designated for specific parts of the assembly, reducing the likelihood of confusion or misplacement during the build process. This organizational feature is particularly helpful for those new to assembling AR15s, as it streamlines the workflow and ensures that each component is used correctly. By facilitating a more efficient assembly process, the color-coded system helps builders focus on precision and accuracy, ultimately leading to a more reliable and functional firearm.

Can the CMMG ZEROED Lower Parts Kit be used for both new builds and upgrades?

Yes, the CMMG ZEROED Lower Parts Kit is suitable for both new AR15 builds and upgrading existing rifles. Its comprehensive selection of components makes it an ideal choice for those looking to construct a new lower receiver from scratch. Additionally, the kit's high-quality, mil-spec components are perfect for replacing or upgrading worn or substandard parts in an existing rifle. This versatility makes the kit a valuable asset for AR15 enthusiasts who want to ensure their firearm is equipped with reliable and high-performance parts.

What considerations should be made when pairing the CMMG ZEROED Lower Parts Kit with a buttstock or brace kit?

When pairing the CMMG ZEROED Lower Parts Kit with a buttstock or brace kit, it's important to consider compatibility and intended use. Ensure that the buttstock or brace is compatible with the AR15 platform and matches the mil-spec standards of the lower parts kit. Additionally, consider the intended application of your build, whether it's for tactical, competitive, or recreational use, as this will influence the type of buttstock or brace that best suits your needs. Comfort, adjustability, and durability are key factors to evaluate to ensure that the final build meets your ergonomic and performance requirements.

What are the advantages of using a mil-spec trigger assembly included in the CMMG ZEROED Lower Parts Kit?

The mil-spec trigger assembly in the CMMG ZEROED Lower Parts Kit offers reliability and consistent performance. Mil-spec triggers are designed to meet stringent military standards, ensuring that they perform reliably under various conditions. This can be particularly important in tactical or defensive scenarios where trigger reliability is critical. Additionally, mil-spec triggers provide a consistent pull weight and reset, which can enhance accuracy and control. For shooters looking to maintain a balance between performance and durability, the mil-spec trigger assembly is an excellent choice for their AR15 build.