KDG STRIBOG 3.25″ RAIL EXTENSION FDE

Description

The KDG SRX3.25 MkII is built for Stribog SP9 owners who want a longer, more manageable forend without committing to a bulkier chassis. It fits SP9 models equipped with M-LOK receivers and is designed to work alongside a muzzle-extending device — either a KDG SMX3, an SMX6, or a suppressor — which supports the extended rail over the muzzle end of the barrel.

The extra quarter-inch over the previous SRX3 is not arbitrary. That small addition creates enough clearance along the underside to fit a second full M-LOK slot at the bottom, which matters when you’re stacking a light and a grip or angling a laser mount where real estate is tight. M-LOK slots run the full length of the rail, so there’s genuine flexibility in where accessories land rather than a fixed set of positions.

KDG machines the body from 6061-T6 aluminum and applies a Type III hard-coat anodized finish, which holds up to holster wear and hardware contact better than a standard Type II coat. This FDE version carries the same Anodized Type III hard coat as the black variant — the color designation refers to the dye used in anodizing, not a coating applied on top. The contoured profile is shaped to sit naturally in the support hand rather than presenting a uniform tube, which reduces the effort needed to maintain a consistent grip during sustained fire. All mounting hardware uses the same screw specification throughout, so installation doesn’t require sorting through multiple fastener sizes. The kit ships with two rail bridges, two bridge clamps, a unified hardware set, and a QR code linking to KDG’s installation guide.