Arsenal's Bulgarian upper and lower handguard set is constructed of high-strength reinforced polymer and offers a modern, weather resistant upgrade over typical AK-pattern wooden components. The lower handguard incorporates a steel heat shield and metal insert by mil-spec standards. This results in decreased heat transfer and maximum user comfort during long shooting sessions. They will fit any milled receiver rifles, including Arsenal's SLR-101S, SA M-5 Series, SA M-7 Series, SAM7R, SAM7UF rifles.