RAP4
F.I.R. Handguard
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The Foregrip Integrated Rail System (F.I.R.) is designed to fit MILSPEC flat top receivers and allows multiple attachments tailored to the needs of the user's specific mission. Installation of the selective rails is easily accomplished with a coin, and are easily installed onto the RAP4 markers. The F.I.R. unit has an upper component made out of cast aluminum, and lower component made out of durable plastic.
