Poly Technologies Original Rear Sight Base Black. We only have very few of these available so these are very limited. Specifications for Poly Technologies Original Rear Sight Base: Manufacturer: Poly Technologies Rear Sight Color: Black Gun Make: Kalashnikov Gun Model: AK-47 Color: Black Gun Type: Rifle Package Contents: Poly Technologies Original Rear Sight Base What firearm models does the manufacturer say Poly Technologies Original Rear Sight Base is compatible with? The manufacturer says that Poly Technologies Original Rear Sight Base is compatible with AK-47Poly Technologies 700129: Original Rear Sight Base Black