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Yankee Hill Machine
Overview
The Yankee Hill Machine 9mm Bolt Buffer (YHM-925-A) is designed as a buffer-only assembly that complements Mil-Spec carbine buffer tubes. It provides the necessary weight and dampening to optimize the cycling of a blowback-operated system, making it essential for reliable function in 9mm AR builds. While primarily used in 9mm configurations, this buffer is often found in builds utilizing a carbine gas system and chambered for 5.56 NATO, ensuring compatibility across various applications.
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Based on build data

Yankee Hill Machine Co., Inc. Ar-15 Gas Tube Black Carbine

Wmd Guns NiB-X Nickel Boron Buffer Tube

Yankee Hill Machine Ar-15 Charging Handle

Yankee Hill Machine Co Dust Cover 556 NATO for AR Rifles - YHM-111-556

Troy Enhanced Trigger Guard SGUA-AMB-00BT-00

Yankee Hill Machine Co., Inc. Ar-15 10.5" Threaded Fluted Barrel 1-8 Twist
| Product | Category | Times Built Together |
|---|---|---|
| Yankee Hill Machine Co., Inc. Ar-15 Gas Tube Black Carbine | 6 | |
| Wmd Guns NiB-X Nickel Boron Buffer Tube | 6 | |
| Yankee Hill Machine Ar-15 Charging Handle | 5 | |
| Yankee Hill Machine Co Dust Cover 556 NATO for AR Rifles - YHM-111-556 | 5 | |
| Troy Enhanced Trigger Guard SGUA-AMB-00BT-00 | 5 | |
| Yankee Hill Machine Co., Inc. Ar-15 10.5" Threaded Fluted Barrel 1-8 Twist | 5 |
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