When did poly start putting these guys out on the market??

[Stinkyrat]

Expensive yes but not far off from what the originals were going for!

http://stores.polytechparts.com/-strse-643/PolyTech-Front-Sight-Base/Detail.bok

When the heck did they start making these?

[Helen Keller]

same price as getting ahold of an original setup.

[imanaknut]

I heard rumors that someone was going to make front sight bases for the Chinese underfolding bayo but never thought it would ever make it to market!

Expensive, but considering the alternative originals are almost impossible to find, and have been running in the $400 plus range, a good way to make your Chinese AK variant really evil looking!

[Russbirch]

Fortunately, they have been wise enough to inscribe via laser etching "Made In USA" on the item and the castings are clean and crisp, very different from the original Poly parts. This will help to preserve the integrity of the original guns and will keep people from covertly converting non spiker to spiker, trying to pass them off as factory guns and diluting the market for these rare and valuable guns. The folks at Keng's are smart and careful enough to protect those fine investment pieces form being hurt by knock-offs. Good people!!!