I have recently purchased a muzzleloader from a gun show.  It is a Investarm 54 cal double set trigger black powder rifle.  I am just wondering if anybody knows where to get accesories for it. I have checked Brownells, Midway USA, Cheaper than Dirt, Cabelas and more.  I would like a different rear sight for it and a different ramrod.  Any help would be appreciated.

Investarms is also the maker of Lyman.  And so a Lyman part fits the Investarms.  The rear sight and ramrod can be got from http://www.Cainsoutdoors.com  or RMCSports.com  both of them carry Lyman parts.  And the Super Rod from Cains is a very good quality rod that they will make to any length you want.  Call them.  They are very helpful.  I have a Lyman Trade Rifle in .54 caliber.  And I have a .50 caliber Lyman Trade Rifle.  Both are great shooters.

Yep , needed a part for mine years back and the guy at the BP store looked it up and said Lyman will work , and it did . Actually Cabela's brand is the same thing , a friend of mine bought a kit ML from them. Mine shoots good too , easy on the powder though .