The CMMG Bolt Catch Kit (55AFF34) is a complete mil-spec AR-15 bolt catch assembly containing every component needed to install, replace, or repair the bolt catch on any standard mil-spec AR-15 lower receiver, packaged as a ready-to-install kit that covers new builds and maintenance equally well.
Key Features
- Part Number: 55AFF34
- UPC: 815835019703
- Type: Bolt catch assembly kit
- Compatible Platforms: AR-15, M4, M16, all mil-spec lower receivers
- Specification: Meets or exceeds mil-spec
- Material: Steel
- Kit Contents: Bolt catch body, bolt catch roll pin, bolt catch spring, and bolt catch plunger
- Compatible with Magpul BAD Lever and similar bolt catch accessories
- Country of Manufacture: USA
Special Features
- The complete four-piece assembly includes the bolt catch body, roll pin, plunger, and spring, covering every component of the bolt catch group so the builder or armorer has everything needed in a single package without hunting for individual parts
- All components are manufactured to meet or exceed mil-spec dimensional tolerances, ensuring correct fit and reliable function in any standard mil-spec AR-15 lower receiver without modification or fitting
- Confirmed compatibility with the Magpul BAD Lever and similar bolt catch accessories means this replacement catch serves as a reliable base for shooters running aftermarket bolt release enhancements on their lower
Practical Benefits
- The 55AFF34 is the practical bench stock item for any AR-15 builder or armorer who wants a complete bolt catch assembly on hand without ordering four individual parts separately, eliminating the assembly delay caused by a single missing component
- As a direct mil-spec replacement, the kit is equally useful for new lower builds, replacing a worn or damaged bolt catch on an existing rifle, or restoring a previously modified lower to standard configuration
- Keeping a spare kit in the parts drawer is a low-cost insurance policy against the roll pin and spring losses that commonly occur during bolt catch installation and removal on the workbench
The CMMG Bolt Catch Kit (55AFF34) is a dependable option for any AR-15 builder, armorer, or owner who wants a complete, mil-spec bolt catch assembly ready to install without a parts hunt or separate hardware order.
| MANUFACTURER | CMMG |