Bastard Tri-Lug
9mm tri-lug bored for .45 caliber projectiles.
The Bastard Tri-lug is a muzzle device which accepts standard 9mm tri-lug adapters but is bored for up to .458 caliber projectiles and has threads to allow for direct mounting on those larger caliber PCCs and SMGs without requiring a thread adapter.
This solves many of the problems that come with using the tri-lug system with larger calibers. The .45 caliber tri-lug muzzle devices and adapters currently on the market are not made to a consistent standard between brands, and the overall selection of adapters and muzzle devices is much more sparse.
If you have a 10mm or .45 caliber suppressor and wish to use it on your 9mm firearms also, you can now simply install a 9mm tri-lug adapter of your choice onto the suppressor and use the Bastard Tri-Lug on your larger caliber firearms along side any 9mm tri-lug muzzle devices on your 9mm firearms. No more thread adapters or compatibility headaches!
WARNING: This product is intended to facilitate the use of large bore suppressors on smaller caliber firearms. If you use this product to mount a 9mm suppressor on a firearm of a larger caliber, it will blow up your suppressor and possibly injure you and/or damage your firearm.