In this episode, Modern Tactical Shooting checks out the 1P86-1 1x4 variable optic. The PSO-1 sniper scope, developed in 1963 for the Soviet SVD rifle, remains in production today. While effective in open terrain, its limitations in close quarters spurred the development of the 1P86 sight for the ASM Val and VSSM Vintorez. The Lazarev Tactical channel details how Russian special forces experimented with replacing PSO-1 on special weapons for shorter-range shooting, but found the need for extensive adjustments. The 1P86 solved this problem by offering a direct fit and optimal settings for these specialized weapons, becoming the standard choice.