Banish 5781 Adapter Thread M13X.75Rh 5/8X24

The Banish 5781 is a precision thread adapter that bridges two different muzzle device standards, letting you mount a 5/8x24 RH suppressor or other muzzle device onto a barrel threaded with an M13x0.75 RH pattern. If you're running a less common barrel thread and want to use mainstream suppressors or brakes, this adapter steps in to make that connection work—without sacrificing concentricity or reliability. It's machined for .30 caliber rifles and smaller, so it handles 7.62x51mm and down with no fuss.

The engineering here centers on fit: the production and inspection process prioritizes concentricity between both threads and the through hole, so your muzzle device sits true. Two large flats provide the grip you need for hand-tight installation without shifting, and the design preserves the barrel's front shoulder to ensure proper alignment. That matters, because a poorly seated adapter can degrade accuracy or create mounting issues down the line.

If you've invested in a suppressor or brake with 5/8x24 threads but your rifle sports an M13x0.75 barrel, this adapter saves you from buying new hardware or rebarreling. It's straightforward engineering: thread it on, seat your muzzle device, and you're running. No special tools, no guesswork.

Key Features

• Converts M13x0.75 RH barrel threads to accept 5/8x24 RH muzzle devices
• Engineered for tight concentricity to maintain accuracy and alignment
• Two large flats for secure hand installation without slippage
• Preserves barrel shoulder for reliable mounting and indexing
• Rated for .30 caliber and smaller rifle cartridges (7.62x51mm and below)

Specifications

Frequently Asked Questions

Will this adapter work with my 5/8x24 suppressor?

Yes—this adapter is designed specifically to convert M13x0.75 barrel threads to 5/8x24, so any suppressor or muzzle device with 5/8x24 RH threading will thread onto it.

What calibers can I use with this adapter?

The adapter is machined to handle .30 caliber rifles and smaller, including 7.62x51mm and lighter cartridges.

Do I need special tools to install it?

No. The two large flats allow you to hand-tighten the adapter onto your barrel and seat your muzzle device without needing a wrench or specialized installation tools.

Does this adapter affect accuracy?

The Banish 5781 is built with tight concentricity tolerances and preserves the barrel shoulder for proper alignment, so it should not negatively impact accuracy when properly installed.