The CSR Precision handguard rail 3-6-9 is a picatinny accessory rail that fits the stock hand guard of the SIG SG550/PE90/Fass90/Stgw90. This accessory rail replaces the original bipod and enables you to fit a picatinny bipod and a light to your SIG.
Unlike other solutions on the market this rail actually enables you to mount bipods like the B&T polymer bipod, which protrudes underneath the bayonet lug.
The rail can be used in either way, with the side rail on either the left hand (9 o'clock) or the right hand (3 o'clock) side.
CNC machined from 7075 aluminium and mil-spec anodized in matte black.
Made in Holland
On backorder: shipping November 2025