Poly Technologies AK-47 Quad Rail System - Chinese Rifle Fits Type 56 Black. 2-piece construction with Picatinny rails. Accepts all weaver tactical accessories as well. Specifications for Poly Technologies AK-47 Quad Rail System - Chinese Rifle Fits Type 56: Manufacturer: Poly Technologies Color: Black Gun Model: AK-47 Package Contents: Poly Technologies AK-47 Quad Rail System - Chinese Rifle Fits Type 56 What firearm models does the manufacturer say Poly Technologies AK-47 Quad Rail System - Chinese Rifle Fits Type 56 is compatible with? The manufacturer suggests that Poly Technologies AK-47 Quad Rail System - Chinese Rifle Fits Type 56 is compatible with AK-47Poly Technologies 500-008: AK-47 Quad Rail System - Chinese Rifle Fits Type 56 Black