Muzzle DevicesValue Tier

Kinetic Development Group

SMX6 - Stribog Muzzle Extension - 6 inch

Six-inch direct-thread Stribog muzzle extension that carries blast beyond an SRX6 rail and also works with the shorter SRX3 family.

Quick Specs

Price
$65
Weight
6 oz
Brand
Kinetic Development Group
Category
muzzle-device

Features

  • 6 in long, 6 oz
  • C1018 mild steel, black nitride
  • 9mm bore, 1/2x28 barrel thread
  • Works with KDG SRX3, SRX3.25, or SRX6
  • Standalone muzzle device; no output thread or suppressor interface

Compatibility Tags

family: pccplatform: stribog-sp9a1platform: stribog-sp9a3caliber: 9mmthread: 1/2x28

Overview

The KDG SMX6 threads directly onto the 1/2x28 muzzle of a 9mm Grand Power Stribog and extends the blast exit six inches forward. It is the unsuppressed companion for a KDG SRX6 receiver extension because it carries the muzzle beyond the front of the longer rail. KDG also permits the SMX6 with the shorter SRX3 and SRX3.25 when extra forward length is acceptable.

KDG machines the six-ounce extension from C1018 mild steel, applies a black-nitride finish, and knurls the fore-end for installation. The SMX6 is a complete muzzle device, not an adapter: the barrel thread terminates inside it, and its forward end is an open 9mm bore with no output thread, QD mount, or suppressor interface. Do not stack it with another muzzle device or suppressor.

Key Features

  • Six-inch blast-forwarding extension for SRX6
  • Also compatible with SRX3 and SRX3.25
  • Direct 1/2x28 attachment to the Stribog barrel
  • C1018 mild-steel construction with black nitride
  • Open 9mm exit bore with no downstream mounting interface

Pros

  • +Correct unsuppressed muzzle completion for the six-inch SRX rail
  • +Works with both the short and long KDG SRX families
  • +Direct-thread installation needs no intermediate adapter

Cons

  • Adds three inches and two ounces over the SMX3
  • Cannot be combined with a suppressor or another muzzle device
  • Unnecessary length when an SRX3 build is optimized for minimum size

Detailed Specifications

type
Standalone blast-forwarding muzzle extension
Material
C1018 mild steel
Finish
Black nitride
bore
9mm
inputThread
1/2x28 female; consumes the Stribog barrel thread
outputInterface
None; open exit bore only
Length
6 in
diameter
Not published
weight
6 oz
compatibility
9mm Stribog SP9 with KDG SRX3, SRX3.25, or SRX6
prohibitedCombination
Do not use with a suppressor or another muzzle device
partNumber
STR5-006

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