Aw, dangit. I'm putting together an upper with their FBI Barrel and it has the "T" mark. This is tempting just from an engineer's perspective.
t-marked-extension.jpg
Aw, dangit. I'm putting together an upper with their FBI Barrel and it has the "T" mark. This is tempting just from an engineer's perspective.
t-marked-extension.jpg
Is there a thread, or website/pictures to show this tapered design versus original and the why's. Just curious and want to understand.
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