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View larger Delta Armory M4 / AR15 Dummy Bolt Catch in black is a realistic accessory for AEG rifles that enhances the look of your rifle with an authentic AR platform detail. The catch is made of durable metal and installs easily into the receiver. It serves purely as a non-functional cosmetic replica.

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The Delta Armory dummy bolt catch is designed for M4 / AR15 AEG rifles and serves as a realistic detail to improve the overall appearance of your rifle. It installs into the lower receiver in the designated slot before attaching the upper receiver. This part has no mechanical function and is purely a visual accessory that gives your rifle a more authentic look, especially for Mil-Sim builds. It does not affect the operation of the rifle and does not control the ejection port cover.
Enhances the authentic look of M4 / AR15 rifles.
Installs into the lower receiver without complicated modification.
Serves purely as a cosmetic design element.
No, it is only a replica. It does not affect the rifle’s operation and does not control the ejection port cover. It is purely for visual purposes.
If you have lost the original piece or are building a realistic M4 with attention to Mil-Sim details, then yes. It does not affect performance, but it improves the overall appearance.
| Color | Black |
| Body/receiver material | Metal |