SilencerCo AC2605 3-Lug Muzzle Device .578x28 Thread 45 ACP Black

The SilencerCo AC2605 3-Lug Muzzle Device transforms suppressor attachment from a time-consuming threading process into a quick quarter-turn operation. This precision-machined device features .578x28 threads specifically engineered for .45 ACP pistols, delivering consistent lockup and enhanced suppressor performance.

What Makes This Different

Unlike traditional direct-thread suppressors that require multiple rotations and careful timing, this 3-lug system achieves secure attachment in seconds. The indexed lug design ensures repeatable positioning with each mounting cycle, maintaining point-of-impact consistency. Heat-treated steel construction withstands the thermal stress of rapid-fire sequences while maintaining dimensional stability across temperature extremes.

Key Features

• Quick-detach 3-lug interface reduces attachment time to under 3 seconds
• Precision .578x28 threading matches SilencerCo Osprey and Octane suppressors
• Nitride-finished steel construction resists corrosion and wear
• Self-indexing lugs eliminate timing issues and ensure consistent positioning
• Low-profile design adds minimal length to host firearm
• Compatible with standard .45 ACP pistol barrels
• Maintains factory sight alignment and holster compatibility

Field testing demonstrates reliable function across various ammunition weights from 185 to 230 grains. The device maintains zero shift under 0.5 MOA when properly torqued, making it suitable for precision applications and competitive shooting. Corrosion-resistant finish handles extended exposure to cleaning solvents and environmental conditions without degradation.

Technical Specs

• Thread pitch: .578x28 TPI
• Material: Heat-treated alloy steel
• Finish: Black nitride coating
• Overall length: 0.75 inches
• Weight: 1.2 ounces
• Caliber compatibility: .45 ACP
• Torque specification: 15-20 ft-lbs
• Country of origin: USA

This muzzle device represents the standard for quick-detach suppressor systems in the .45 ACP platform. Professional users and enthusiasts recognize the time savings and consistency advantages over traditional threading methods.