The Kinetic Development Group 6-inch M-LOK rail extension adds six inches to the forend of a Stribog SP9 and puts M-LOK slots along its entire length (Kinetic Development Group part no. STR5-MK2-120). KDG calls it the MkII SRX6, machines it from 6061-T6 aluminum in flat dark earth and shapes a contoured profile meant to give a more comfortable, secure grip, especially for shooters with larger hands. Ventilation is built in for use with a variety of suppressors, and the MkII uses the same screws for every component to keep installation simple. It fits Stribog SP9 models with M-LOK receivers and must be used with KDG’s SMX3 or SMX6 muzzle extension or another muzzle-extending device such as a suppressor. For an owner who has filled the factory handguard and wants room for lights, lasers or a foregrip, this Kinetic Development Group extension is the direct answer.

Key Specifications

• It fits Stribog SP9 models with M-LOK receivers, according to KDG.
• It adds 6 inches to the Stribog’s forend, giving a longer, steadier place to hold.
• M-LOK slots run along its entire length, so lights, lasers and grips can mount almost anywhere.
• It is machined from 6061-T6 aircraft-grade aluminum, a strong, light alloy for a forward-mounted part.
• The color is flat dark earth (FDE), from KDG’s Type III hard coat anodized or Cerakote finish options.
• The rail measures 9.8 inches long overall, KDG’s listed length for the MkII SRX6.
• The rail weighs 7.7 ounces, or 9.7 ounces complete with the bridge and hardware.
• The internal diameter is 1.72 inches, and KDG says the design accommodates a variety of suppressors with ample ventilation.
• The kit includes the rail, bridge, two bridge clamps and a hardware kit, plus a QR code linking to installation instructions.

Frequently Asked Questions

Does it need a muzzle extension to work? Yes. KDG states the extension must be used with its SMX3 or SMX6 muzzle extension or another muzzle-extending device such as a suppressor.

Which suppressors will not work with it? KDG notes that the B&T VERS36 Ti suppressor will not work with the rail extension, while it is designed to accommodate a variety of other suppressors.

What is included in the box? The kit contains the rail, a bridge, two bridge clamps and a hardware kit, along with a sticker and a QR code to installation instructions.

Buy the Kinetic Development Group SRX6 MkII 6-Inch M-LOK Rail Extension for Stribog SP9, FDE

A longer forend with M-LOK slots down its length is the simplest way to add room for a light, laser or grip on a Stribog SP9. Order it from our Lubbock, Texas gun shop for fast, insured shipping, and see more rifle accessories and parts while you are here.