https://www.teaguechokes.com/chokes/blaser/titanium-blaser-f3-f16-12g-ported
Blaser F3/F16 12g - Ported - Titanium | Teague Chokes
The Teague Blaser F3 F16 12g Titanium ported choke protrudes from the end of the barrel, providing a longer tapered section in the choke for a more consistent...
teague chokesblaserportedtitanium