IZH-70 cal. 380ACP

[NAM67]

I have just purchased the above Mak. with extra barrel and accessories for $165.00. I would rate it 98% and I work with the original purchaser who only put one or two boxes thru it.
I have done searches of this site and others and find them helpful but have not seen any specific mention of this pistol which is marked- Big Bear Arms, Dallas TX and 40 Years of Makarov Pistol.
Could anyone further enlighten me on exactly what I have? I do believe it would be designated a commercial Mak. I have owned and shot other .380's and except for the front site enjoy shooting it as much as more expensive pistols.

[Teakwood]

The pistol was made at the Imez factory (Izhevsky Mekhanichesky Zavod) for the commercial market.
The pistol was made for the commercial market.
By the markings you have noted, it is the 40-year commemorative model produced in the early 1990s (Makarovs first went into production for the Soviet military about 1950). It is a rarer version of the IJ70 that was imported from Russia in great numbers during the early to mid 1990s.
Big Bear was the importer of the pistol you have, but there were other importers.

The pistol did not originally come with an extra barrel. Tht would have been purchased separately.
Be careful. IJ70s were made in both 9x18M and .380. Do not get them confused as the 9x18M has a larger diameter and cab cause serious damage if fired in a pistol chambered for 9x18M.
Talk with whomever you purchased the pistol from to be sure of the chambering for the barrel in the pistol and the extra barrel.

Here are a couple of links that may be helpful
http://www.makarov.com/makbasics.html
http://www.makarov.com/makfaq.html