AB4D: Professional 3D graphics for c# and .Net

ak4dThe second AK4D with the optimized PA ACSS reticle based on a PTR 91. PTR 91 build iron shts to 500 yards PTR DMR rifle ETA: This thread started out as the title indicates,The AK4D, however, is the last iteration of the modernized version of the AK4 G3 system that Sweden uses. The AK4C and AK4D systems are most notable for using a Spuhr