Keep your AR-15 build tight, reliable, and true to spec with the CMMG Hand Guard Slip Ring Kit – Black (Part #: 55DA2CF | UPC: 815835012759). Whether you’re refreshing a well-used rifle, restoring a classic configuration, or completing a new build, this kit gives you all the essential components you need to properly secure standard two-piece handguards on a mil-spec style AR-15 upper.
This complete kit from CMMG includes the slip ring (often called a delta ring), spring, and retaining ring, all finished in black for a clean, factory-style appearance. It’s an ideal solution for armorers, builders, and DIY enthusiasts who want dependable parts from a trusted manufacturer.
Complete Hand Guard Slip Ring Kit for AR-15 Builds
Instead of hunting down individual small parts, the CMMG Hand Guard Slip Ring Kit conveniently packages three critical components:
Slip Ring (Delta Ring)
Spring
Retaining Ring
Together, these parts work to:
Secure standard two-piece polymer or M4-style handguards
Maintain consistent tension and alignment
Allow easy installation and removal of handguards with the proper tools
If you’re working with a traditional AR-15 front handguard setup (non free-float), this kit is a must-have.
High-Quality Black Finish for a Clean, Factory Look
The components in this CMMG kit feature a black finish that blends seamlessly with most AR-15 upper receivers and barrel assemblies. Benefits include:
A professional, OEM-style appearance
Compatibility with black barrels, barrel nuts, and front sight bases
A consistent look that suits duty, defense, and range rifles alike
Whether you’re restoring an issued-style rifle, building a clone, or simply prefer the classic black look, this kit integrates perfectly with modern and traditional AR aesthetics.
Includes Slip Ring (Delta Ring), Spring, and Retaining Ring
Each part in this kit plays a crucial role in securing your handguard:
Slip Ring (Delta Ring)
The slip ring (often called a delta ring) is the external collar you pull back to install or remove standard two-piece handguards. It:
Provides tension and retention for the handguard halves
Makes it possible to install and remove handguards without disassembling the entire front end
Offers a secure, proven interface used on millions of AR-15 and M4-style rifles
Spring
The included spring fits beneath the slip ring and keeps constant pressure on the ring:
Ensures the slip ring pushes forward to lock handguards into place
Helps eliminate rattling and play in properly installed handguards
Maintains reliable retention over long-term use
Retaining Ring
The retaining ring holds the assembly onto the barrel nut and keeps everything aligned:
Acts as a critical anchor for the slip ring and spring
Keeps the components seated correctly under use
Supports consistent alignment of two-piece handguards at the receiver end
With all three pieces working together, you get a secure, stable mounting system for your standard handguards.
Ideal for AR-15 Repairs, Restorations, and New Builds
The CMMG Hand Guard Slip Ring Kit is a smart addition to any AR builder’s parts bin. It’s perfect for:
Repairing worn, damaged, or missing delta ring components
Restoring classic-style AR-15s with two-piece handguards
Building clone rifles that use traditional handguard setups
Serving as spare parts for armorers and gunsmiths
If you’ve ever tried to reuse a badly worn or bent slip ring, you know how important fresh, high-quality components can be. This kit ensures you’re starting with parts you can trust.
Compatible with Standard AR-15 Platform
Designed for the AR-15 platform, this CMMG slip ring kit is engineered around mil-spec style barrel nut and handguard interfaces. It is generally used with:
Standard two-piece plastic/M4 handguards
A2/F-marked front sight bases (or similar gas block setups that support two-piece handguards)
Non free-float handguard systems
If your build uses traditional drop-in handguards instead of free-float rails, this kit is likely exactly what you need at the receiver end.
Note: Always confirm compatibility with your specific barrel nut, upper receiver, and handguard configuration, especially if using non-standard parts.
Trusted CMMG Quality
CMMG is known for producing reliable AR-15 parts and components that are widely used by builders, enthusiasts, and professionals. With the CMMG Hand Guard Slip Ring Kit, you benefit from:
Parts designed specifically for AR-15 applications
Quality control from a reputable manufacturer
A hassle-free way to source all necessary delta ring assembly components at once
When you’re building or repairing a rifle, small parts matter. This kit helps ensure your handguard assembly is not an afterthought.
Easy to Integrate into Your Build
While installation may require armorer tools and some mechanical familiarity, once installed properly this kit offers:
Secure, repeatable fitment for compatible handguards
Reliable function during normal shooting and handling
A familiar, user-friendly system for swapping or upgrading handguards later on
For experienced AR builders and gunsmiths, this is a straightforward, drop-in style part set. For newer builders, it’s a simple way to ensure you have the correct components in one package.
Key Features & Specifications
Brand: CMMG
Product Type: Hand Guard Slip Ring Kit
Includes: Slip ring (delta ring), spring, retaining ring
Color/Finish: Black
Platform: AR-15 (standard-style two-piece handguard setups)
Part Number: 55DA2CF
UPC: 815835012759
Why Choose the CMMG Hand Guard Slip Ring Kit?
Choosing the CMMG Hand Guard Slip Ring Kit, Includes Slip Ring, Spring, and Retaining Ring, Black (55DA2CF) gives you:
A complete, ready-to-install assembly for traditional AR-15 handguards
Quality components from a respected AR parts manufacturer
A clean, black finish that matches most rifle builds
The convenience of having all three necessary pieces in one package
If you’re repairing, rebuilding, or completing an AR-15 with standard two-piece handguards, this CMMG kit is a simple, reliable solution that ensures your front end is properly secured and ready for serious range time.
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