UTG Pro Model 47 Handguard Quad Rails For 7.62x39.Fits Romanian, Bulgarian, Chinese, US, and variants of the 7.62x39, Including models with oversized barrel/rear sight block. Rugged aircraft aluminum alloy construction with precision CNC machining. Four mil-spec picatinny rails with integrated QD swivel housing on left/right rails for versatile accessory applications. Simple and friendly installation. No gunsmith or tool required. Solid locking features for most secure fit. Ultimate tactical solution to enhance accuracy under toughest environments. Hard anodized finish for wear resistance. Black rubber rail guards included. 922R compliant.