Product Overview
The CMMG Parts Kit AR‑15 Magazine Catch (55AFFA7) is engineered to deliver rock‑solid magazine retention for any AR‑15 platform. Designed by CMMG, a leader in high‑performance firearms components, this kit provides a seamless blend of durability, precision engineering, and effortless installation. Whether you’re building a tactical rifle, competing on the range, or enhancing a defensive platform, this magazine catch ensures consistent performance under the most demanding conditions.
Crafted from hardened steel with a corrosion‑resistant finish, the catch offers long‑lasting reliability without the need for frequent maintenance. Its low‑profile design integrates smoothly with standard AR‑15 lower receivers, preserving the rifle’s ergonomics while adding a robust locking mechanism that prevents accidental magazine drops.
Key Features & Benefits
- Precision‑Machined Steel: High‑grade alloy steel for maximum strength and wear resistance.
- Corrosion‑Resistant Finish: Protective coating extends service life in harsh environments.
- Secure Magazine Retention: Positive latch action keeps magazines firmly in place during rapid fire or vigorous movement.
- Easy Installation: Comes with all required hardware and a step‑by‑step guide – no gunsmith needed.
- Low‑Profile Design: Maintains the original feel of your AR‑15 while adding enhanced functionality.
- Compatibility: Fits standard AR‑15 lower receivers and works with both aluminum and polymer magazine wells.
- Enhanced Tactical Performance: Ideal for competition, law‑enforcement, military, and civilian defensive builds.
Technical Specifications
| Specification | Detail |
|---|
| Part Number | 55AFFA7 |
| Material | Hardened Steel with Nickel‑Boron Coating |
| Dimensions | Length: 2.1 in (53.3 mm) | Width: 0.8 in (20.3 mm) |
| Weight | 0.12 lbs (55 g) |
| Finish | Matte Black, Corrosion‑Resistant |
| Installation Tools | Standard AR‑15 hex wrench (included) |
| Compatibility | All standard AR‑15 lower receivers |
| UPC | 815835019710 |
Installation Guide
- Ensure the firearm is unloaded and safe before beginning any work.
- Remove the existing magazine catch using the supplied hex wrench.
- Align the CMMG magazine catch with the pre‑drilled holes on the lower receiver.
- Insert the provided screws and tighten to the manufacturer’s torque specifications (≈ 20 in‑lb).
- Test the catch by inserting and releasing a magazine to confirm smooth operation.
- Reassemble the rifle and perform a function check.
All necessary hardware and a detailed PDF manual are included in the kit.
Why Choose CMMG?
CMMG has been a trusted name in the firearms industry for over two decades, renowned for innovation, quality, and performance. Their parts are rigorously tested to meet military‑grade standards, ensuring that every component—like the 55AFFA7 magazine catch—delivers uncompromising reliability when it matters most.
When you select a CMMG component, you’re investing in a product that’s backed by a legacy of engineering excellence and a community of shooters who demand the best.
