By simply extending this barrel does not fix the issue. You still can not feed a flash lead through the stock barrel at all. The gun barrel ios a part of the firing mech in it self. You would need to bore straight throught the entire barrel with a long drill bit and while your doing it have some glue on hand to glue it all back together once your done cracking it all to hell while drilling. <div> Ask me how I know LOL.
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