The CMMG 55AFF3B AR-15 HD Pivot and Takedown Pin Parts Kit provides durable replacement hardware for AR-platform rifles. Designed for use with .223 Remington and 5.56 NATO-compatible builds, this kit includes heavy-duty pivot and takedown pins intended to support reliable upper and lower receiver assembly. Its black finish provides a clean, factory-style appearance that complements a wide range of AR-15 configurations.
Manufactured by CMMG, the kit is made from metal for dependable service during routine maintenance, upgrades, and replacement applications. The HD Pivot and Takedown Pin design helps secure the upper and lower receivers while allowing convenient disassembly when servicing or transporting the firearm. The components are suited for builders, gunsmiths, and firearm owners seeking replacement parts for compatible AR-15 platforms.
Installation should be performed only after verifying firearm compatibility and ensuring the firearm is unloaded and safe. Because receiver specifications and component fit can vary among manufacturers, confirm that the CMMG 55AFF3B kit matches your specific AR-15 receiver set before installation. This product is intended for firearm maintenance and assembly by individuals familiar with safe handling practices and applicable laws.
The CMMG 55AFF3B combines a practical metal construction, black finish, and AR-15 compatibility in a focused replacement parts kit. It is a suitable choice for maintaining receiver function, replacing worn hardware, or completing an AR-platform parts build with trusted CMMG components.
Features:
- Brand: CMMG
- Part Number: 55AFF3B
- Compatibility: AR-15 and AR-platform receivers
- Caliber Compatibility: .223 Remington and 5.56 NATO
- Type: Heavy-duty pivot and takedown pin parts kit
- Material: Metal
- Finish: Black
- Application: Receiver maintenance, replacement, and assembly
