Yankee Hill Machine Flash Hider Phantom 5C2 Aggressive ParkerizedYankee Hill Machine$54.75
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Yankee Hill Machine
The Yankee Hill Machine Phantom 5C1 Smooth Steel Parkerized Flash hider is a purpose-built muzzle device for 5.56mm AR-15s that balances flash suppression with practical shootability. Built on YHM's proven five-port design, the Phantom 5C1 eliminates downward-facing ports—a smart choice if you shoot prone and want to avoid dust clouds kicking up from the ground. Unlike tactical comps with aggressive cut-up end designs, the Phantom 5C1 features a smooth muzzle end, making it ideal for shooters who prefer a cleaner profile or don't need the extra hand-to-hand utility of a crowned muzzle.
The smooth steel construction is parkerized for durability and corrosion resistance, and at just over 2 ounces, it won't add noticeable weight or change your rifle's balance. Installation is straightforward on any 1/2-28 threaded barrel—YHM includes a crush washer to get you running quickly. Whether you're building a duty rifle, setting up a 3-gun competitor, or simply want an effective flash hider without aggressive aesthetics, the Phantom 5C1 delivers the functionality YHM is known for in a straightforward package.
This is real steel that'll hold up to hard use. The Phantom line has been in production for years, and the design speaks for itself: it works, and shooters keep coming back.
| Caliber | 5.56mm |
| Thread Pattern | 1/2-28 |
| Length | 2.125 inches |
| Weight (with crush washer) | 2.208 ounces |
| Material | Steel, parkerized finish |
| Ports | 5-port design, no downward-facing ports |
| Included Accessories | Crush washer |
The Phantom 5C1 is designed for barrels with 1/2-28 threads only. Check your barrel's thread pitch before ordering. If you have a different thread pattern, you'll need a different YHM device.
The main difference is the muzzle end design. The Phantom 5C1 has a smooth end, while YHM also makes a version with aggressive front-end cuts for hand-to-hand applications. Both use the same five-port flash-suppression design; choose based on whether you want a tactical crown or a cleaner profile.
The absence of a downward port is intentional. When shooting prone, a downward port will kick up dust and debris from the ground, creating visibility problems. The Phantom's five-port layout directs gas upward and to the sides, keeping your sight picture clean in the dirt.
The Phantom 5C1 includes the flash hider and a crush washer for installation. You'll need a wrench or YHM's installation tool to torque it onto your barrel threads.
Yankee Hill Machine
The Yankee Hill Machine Phantom 5C1 Smooth Steel Parkerized Flash hider is a purpose-built muzzle device for 5.56mm AR-15s that balances flash suppression with practical shootability. Built on YHM's proven five-port design, the Phantom 5C1 eliminates downward-facing ports—a smart choice if you shoot prone and want to avoid dust clouds kicking up from the ground. Unlike tactical comps with aggressive cut-up end designs, the Phantom 5C1 features a smooth muzzle end, making it ideal for shooters who prefer a cleaner profile or don't need the extra hand-to-hand utility of a crowned muzzle.
The smooth steel construction is parkerized for durability and corrosion resistance, and at just over 2 ounces, it won't add noticeable weight or change your rifle's balance. Installation is straightforward on any 1/2-28 threaded barrel—YHM includes a crush washer to get you running quickly. Whether you're building a duty rifle, setting up a 3-gun competitor, or simply want an effective flash hider without aggressive aesthetics, the Phantom 5C1 delivers the functionality YHM is known for in a straightforward package.
This is real steel that'll hold up to hard use. The Phantom line has been in production for years, and the design speaks for itself: it works, and shooters keep coming back.
| Caliber | 5.56mm |
| Thread Pattern | 1/2-28 |
| Length | 2.125 inches |
| Weight (with crush washer) | 2.208 ounces |
| Material | Steel, parkerized finish |
| Ports | 5-port design, no downward-facing ports |
| Included Accessories | Crush washer |
The Phantom 5C1 is designed for barrels with 1/2-28 threads only. Check your barrel's thread pitch before ordering. If you have a different thread pattern, you'll need a different YHM device.
The main difference is the muzzle end design. The Phantom 5C1 has a smooth end, while YHM also makes a version with aggressive front-end cuts for hand-to-hand applications. Both use the same five-port flash-suppression design; choose based on whether you want a tactical crown or a cleaner profile.
The absence of a downward port is intentional. When shooting prone, a downward port will kick up dust and debris from the ground, creating visibility problems. The Phantom's five-port layout directs gas upward and to the sides, keeping your sight picture clean in the dirt.
The Phantom 5C1 includes the flash hider and a crush washer for installation. You'll need a wrench or YHM's installation tool to torque it onto your barrel threads.