Yankee Hill Machine R45 Suppressor | 45 ACP | 5/8-24 DT

The Yankee Hill Machine R45 is a multi-caliber suppressor built around a tubeless design and heat-treated 17-4 stainless steel construction. It attaches via a 5/8-24 direct-thread HUB adapter and ships with two wrenches for installation and maintenance. The design emphasizes a compact profile and compatibility across a broad set of pistols and rifles chambered for calibers up to .45-70 Government.

Typical applications include reduced-report range training with centerfire pistols and precision pistol or carbine competition where multi-caliber capability and low weight are valued. The R45 is also specified for limited full-auto use per manufacturer guidance.

Product Specifications

• The manufacturer is Yankee Hill Machine.
• The model is listed as the R45 suppressor.
• The unit is described as MULTI-CALIBER (includes .45 ACP; max .45-70 Government).
• The material is specified as heat-treated 17-4 stainless steel.
• The thread pattern for attachment is 5/8-24 Direct Thread.
• The product ships with 2 wrenches and a 5/8-24 Direct Thread HUB Adapter.
• The manufacturer lists a suppression example as 132 dB on a 7.8″ barrel with 230 gr. FMJ.
• The finish has conflicting source values; see notes for details.
• Diameter values conflict between sources; see notes for details.
• Length values conflict between sources; see notes for details.
• Weight values conflict between sources; see notes for details.
• The unit is listed as Full-auto rated (limited use) by the manufacturer.
• The UPC is 841812101752.

Compact, robust, and designed for multi-caliber use, the R45 brings Yankee Hill Machine’s tubeless design and stainless construction to a variety of pistols and short-barreled rifles. Its direct-thread HUB adapter and included wrenches make it straightforward to mount where 5/8-24 threads are standard, and the manufacturer’s example suppression level demonstrates meaningful report reduction in typical test conditions. The R45 is a practical option for shooters seeking a versatile suppressor for range training and competition use.