AP53 Taper Adapter
$19.95
This adapter converts rifle barrels to traditional 90-degree shoulders
1/2" (9mm,5.56mm,.22cal)
5/8" Up to 308 Win
304 stainless
Fit a sig m400 Tread rifle perfectly so I could install a regular 1/2x28 Plan B flash hider. Doesn't stick out or anything, blends right in.