Rugged Suppressors 3 Lug Adapter .45ACP .578x28

The Rugged Suppressors 3 Lug Adapter converts .578x28 threaded host firearms to the .45 ACP 3 Lug mounting system, allowing use with the Obsidian 45 suppressor and compatible Rugged Suppressors .45ACP 3 Lug Mounts.

This adapter features a patented Go/No Go Gauge built into the design, providing confirmation that the suppressor is properly attached to the adapter for reliable performance.

Constructed from stainless steel with a black matte finish, this adapter is precision-machined for a secure, repeatable mount. The 0.1375 lb weight helps maintain manageable overall system mass.

For installation, use Red Loctite or Rocksett with 20–25 ft-lbs of torque as recommended.

• Converts .578x28 thread to .45 ACP 3 Lug system
• Compatible with Rugged Suppressors Obsidian 45 and .45ACP 3 Lug Mount
• Patented Go/No Go Gauge for proper attachment verification
• Stainless steel construction with matte black finish
• Manufactured in the USA