SKU: KTRFB420
UPC: 640832001549
MPN: RFB-420
The Kel-Tec RFB Quad Rail is a direct-fit replacement handguard for the bullpup RFB 7.62mm rifle, built for shooters who want full-length accessory mounting on all four sides. Manufactured by Kel-Tec Cnc Industries Inc., it measures approximately nine inches and gives you Picatinny real estate for lights, lasers, grips, and sights. This is the OEM-pattern quad rail (MPN RFB-420), so it fits the RFB without modification and keeps the rifle's compact footprint intact. If you've been running a bare RFB barrel shroud and need mounting points, this is the part that opens the platform up.
The rail body is machined from 6061-T6 aluminum and finished in hard coat anodize, the same construction Kel-Tec specifies for its factory rail. Two scalloped cut-outs on the top Picatinny section let you reach the gas system for adjustment and give ejected casings a clear path out of the ejection port. Mount accessories with care on the left side, since hardware placed there can interfere with ejection. Every slot accepts standard MIL-STD 1913 Picatinny attachments, so optics mounts, vertical foregrips, and rail-mounted lights drop right on. The kit ships with the quad rail, a locking nut and wrench, and a set screw with hex key, so installation needs no extra tooling.
Pair this rail with an RFB build when you want to add a light and forward grip without changing the rifle's balance. The four-rail layout suits home-defense and range setups where you're mounting more than one accessory, and the open top section keeps the gas adjustment accessible for shooters who tune their RFB for suppressed or unsuppressed loads. While you're outfitting the rifle, look at our RFB tactical operating handle and the broader forend and handguard parts selection for grips, rail covers, and bipod mounts to finish the build.
This is an OEM-pattern quad rail for the Kel-Tec RFB 7.62mm bullpup rifle. It installs without modification and replaces the factory barrel shroud, giving the rifle four full-length Picatinny rails for mounting accessories.
Every slot is cut to MIL-STD 1913 Picatinny specification, so it accepts standard rail-mounted lights, lasers, optics mounts, vertical grips, and bipod adapters. Use caution mounting hardware on the left side, since it can block the ejection port.
No. The top Picatinny section has two scalloped cut-outs that let you reach the gas regulator for adjustment and give ejected casings a clear exit path from the ejection port.
The kit includes one quad rail, one locking nut with wrench, and one set screw with hex key. No additional tools are required for installation.
The body is machined from 6061-T6 aluminum and finished with hard coat anodize for corrosion and wear resistance, matching Kel-Tec's factory rail construction.
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