Yankee Hill Sidewinder M2 .45 Cal Suppressor .578"-28

Sidewinder M2 45 Cal Suppressor 9.2 Inch with 578-28 Thread 7075-T6 Aluminum and 17-4 PH Stainless Steel Construction

The Sidewinder M2 45 Cal Suppressor delivers 133 dB sound reduction in a 9.2 inch package weighing 9.4 ounces without piston. Built from 7075-T6 aluminum and 17-4 PH stainless steel, this suppressor features 578-28 threading for semi-automatic pistol compatibility and is rated for full auto use. The tool-less rear cap enables quick piston swaps, while the user-serviceable baffle stack and Nielsen device simplify maintenance.

Key Features

• 9.2 inch length and 9.4 ounce weight provide compact sound suppression without adding significant bulk
• 7075-T6 aluminum and 17-4 PH stainless steel construction balances durability with weight reduction
• 578-28 thread pitch matches industry standard piston patterns for 45 ACP pistols
• Tool-less rear cap design allows piston swaps without additional equipment
• User-serviceable baffle stack and Nielsen device support field maintenance and cleaning
• 10 index positions enable point of impact adjustment for precision tuning
• 133 dB sound reduction level protects hearing while maintaining firearm function
• Full auto rated for high-volume shooting applications

Perfect For

• Shooters running 45 ACP semi-automatic pistols
• Users wanting a lightweight suppressor for extended carry or shooting sessions
• Builders seeking cross-compatibility with 300 BLK subsonic loads on 7.5 inch or longer barrels
• Operators requiring tool-less serviceability for rapid piston changes in the field

Point of Impact Adjustment System

The 10 index positions allow shooters to adjust suppressor alignment and compensate for point of impact shift. This feature helps maintain accuracy across different host firearms and ammunition types without requiring permanent modifications to the mounting system.

Cross-Caliber Compatibility

While designed for 45 ACP, this suppressor also supports 300 BLK subsonic ammunition when used with barrel lengths of 7.5 inches or longer. The 1.375 inch diameter and baffle design accommodate the necessary bore clearance for both calibers without compromising suppression performance.

Piston-Based Mounting System

The 578-28 piston follows industry standard threading patterns for semi-automatic pistol compatibility. The tool-less rear cap simplifies piston swaps when moving the suppressor between host firearms with different barrel thread pitches, eliminating the need for specialized tools during configuration changes.

May Dropship from Davidson Defense. Verify barrel thread pitch compatibility before installation. Inspect piston and Nielsen device regularly for wear or carbon buildup. Ensure secure piston engagement before firing. Follow safe handling and manufacturer instructions. Ensure compliance with all applicable laws.