The Yankee Hill Machine R9 is a suppressor rated to 7.62mm, built from stainless steel and mounting by direct thread in 1/2x28. It measures 5.2 inches long and 1.562 inches in diameter, weighing 10.7 oz. As published, it is full auto rated, but not wet capable, user serviceable, or modular, and it is made in the USA. Measured against the 85 7.62mm-rated suppressors in the index, it lands in the lightest quarter for weight (10.7 oz), among the shortest 10 percent for length (5.2 in), and among the least expensive 10 percent for price ($525). The closest listed comparison is Yankee Hill Machine Resonator K, the same brand's 7.62mm-rated can, priced at $625.

| Series | R9 |
| Type | Traditional |
| Form Factor | Multi |
| Max Caliber | 7.62mm |
| Mount Type | Direct Thread |
| Mount System | 1/2x28 |
| Diameter (in) | 1.562 |
| Length (in) | 5.2 |
| Weight (oz) | 10.7 |
| Material | Stainless Steel |
| Full Auto Rated | Yes |
| Wet Capable | No |
| Modular | No |
| Serviceable | No |
| Country of Manufacture | USA |
| Average Price | $525 |
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