B-31 Rail by Zenitco

Overview

The B-31 V2.0 is the upper half that turns a B-30 or B-30U into a complete handguard. Eight screws hold it, and it lays Picatinny over the barrel and gas block without crossing the line of the iron sights.

It also works on the B-10L handguard paired with an extension insert. One hard limit: it fits only carbines with a 415 mm barrel - shortened versions such as the 105 variant or Saiga version 33 will not take it.

The B-31 is the extended upper rail of the Zenitco handguard system. It gives you a continuous 185 mm Picatinny top rail so you can run a magnified optic or a red dot with plenty of mounting length, while the open, skeletonized body keeps weight low.

It mounts to a Zenitco B-30 or B-30U handguard, or to a B-10L handguard combined with the DL-1 add-on (or with the Sport-1 kit in place of the B-31L), using eight screws for a rigid, return-to-zero fit. A genuine Zenitco factory part machined from D16T aluminum alloy; it measures about 200 x 47 x 37 mm and weighs about 116 g.

Technical Specifications