The Knights Armament CRS-3 5.56 NATO QD Rifle Suppressor w/ QDC Flash Hider Black (123992-BLK) is a compact, high-performance sound suppressor designed for 5.56mm NATO platforms. Manufactured by Knights Armament Company, the CRS-3 combines excellent sound and flash suppression with a quick-detach mounting system in a shorter, maneuverable package. This complete kit includes the suppressor along with the required QDC Flash Hider, providing everything needed for fast and secure attachment. Finished in a durable matte black, the CRS-3 is an ideal choice for shooters seeking a compact 5.56 suppressor that delivers professional-grade performance without excessive added length.
Why Choose the Knights Armament CRS-3 5.56 QD Suppressor?
Knights Armament Company is widely recognized as one of the premier manufacturers of military-grade suppressors. The CRS-3 (Compact Rifle Suppressor) was developed to offer strong sound reduction in a more compact form factor compared to full-size 5.56 suppressors. The Quick Detach Coupler (QDC) system allows users to attach or remove the suppressor in seconds without tools, making it highly practical for both tactical and recreational use. This model comes complete with the QDC Flash Hider, ensuring users have the proper muzzle device required for the QD mounting system. The compact design makes the CRS-3 especially well-suited for shorter-barreled rifles such as MK18s, CQB builds, and SBRs where overall length is a concern. With its robust construction and advanced baffle technology, the CRS-3 delivers reliable sound and flash suppression while maintaining the legendary durability that Knights Armament products are known for.
Key Features of the Knights Armament CRS-3 5.56 NATO QD Suppressor (123992-BLK)
- Quick Detach (QDC) Mounting System – Fast, secure, and repeatable attachment and removal without tools
- Includes QDC Flash Hider – Complete kit with the required muzzle device for QD mounting
- 5.56mm NATO Rated – Optimized for 5.56x45mm NATO and .223 Remington ammunition
- Compact Rifle Suppressor (CRS) Design – Shorter overall length for improved handling and maneuverability
- Matte Black Finish – Durable, non-reflective coating with excellent corrosion resistance
- Advanced Baffle Technology – Precision-engineered internals for effective sound and flash suppression
- Minimal Point of Impact Shift – Maintains consistent accuracy when mounting and removing the suppressor
- Lightweight Construction – High-strength materials reduce added weight while maintaining durability
Performance and Build Quality
The Knights Armament CRS-3 5.56 NATO QD Suppressor is engineered to deliver strong sound reduction in a compact and practical package. Its quick-detach mounting system allows operators to rapidly install or remove the suppressor, providing significant flexibility during training or field use. The included QDC Flash Hider not only enables the quick-detach function but also helps reduce visible muzzle flash when the suppressor is not attached.
The compact design of the CRS-3 reduces overall length compared to standard 5.56 suppressors, making it an excellent choice for shorter-barreled rifles and close-quarters applications. Knights Armament’s advanced baffle technology effectively reduces muzzle blast and visible signature while maintaining structural integrity under heavy use. The matte black finish provides a professional tactical appearance and helps protect the suppressor from the elements. Whether used for tactical operations, home defense builds, or general suppressed training, the CRS-3 offers reliable performance with minimal added length and weight.
Technical Specifications
| Product Name | KAC CRS-3 5.56 NATO QD Suppressor |
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| Model Number | 123992-BLK |
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| Caliber | 5.56mm NATO / .223 Remington |
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| Mounting System | Quick Detach (QDC) |
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| Includes | QDC Flash Hider |
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| Finish | Matte Black |
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| Configuration | Compact Rifle Suppressor (CRS-3) |
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| Manufacturer | Knights Armament Company (KAC) |
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| Best For | Short-Barreled Rifles, Tactical Use, CQB Builds, Suppressed Training |
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Experience compact, high-performance suppression with quick-detach convenience.
Knights Armament CRS-3 5.56 NATO QD Suppressor – Built for reliability and performance.
The Knights Armament CRS-3 5.56 NATO QD Rifle Suppressor w/ QDC Flash Hider Black (123992-BLK) delivers effective sound and flash suppression in a compact quick-detach design. Rated for 5.56mm NATO, this suppressor includes the QDC Flash Hider and features a durable matte black finish. The model number 123992-BLK identifies this specific configuration. Always ensure compliance with all applicable federal, state, and local laws regarding suppressors and firearm accessories.
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