CMMG AR15 Gunbuilder’s Kit (Lower Parts Kit) – 55CA601

Description

The CMMG AR15 Gunbuilder’s Kit (55CA601) is a specialized Lower Parts Kit (LPK) designed for builders who want to customize their rifle’s ergonomics and performance from the start.

Unlike a standard LPK, this kit excludes the fire control group (trigger and hammer) and the pistol grip, assuming you will be purchasing high-end aftermarket versions of those components.

What’s Included

This kit contains all the high-quality “mil-spec” small parts required to complete an AR-15 lower receiver:

• Take-down & Pivot Pins: Including the necessary detents and springs.
• Bolt Catch Assembly: Bolt catch, plunger, spring, and roll pin.
• Magazine Catch Assembly: Magazine catch, spring, and button.
• Safety Selector: Standard semi-auto selector, detent, and spring.
• Buffer Retainer: Pin and spring.
• Trigger Guard: Standard polymer guard with roll pin.

Why Choose This Kit?

• Cost Efficiency: You aren’t paying for a “parts bin” trigger or a basic A2 grip that you’ll likely replace immediately.
• CMMG Quality: CMMG is well-regarded for having excellent quality control on small parts, meaning fewer “out-of-spec” headaches during the build.
• Organized Packaging: Parts are usually color-coded or separated in bags to make identification easier for first-time builders.