Radical DefenseKFM Taper Mount Flash Hider (1/2x28)
Muzzle Device · attaches to 1/2x28 · presents RD KFM QD · fits 597 suppressors in the catalog
length
2.2″
weight
3.36 oz
thread
1/2x28
+1 more thread pitch
material
SAE/AISI 8620
standard
RD KFM QD
MSRP
$59
A barrel adapter screws onto your rifle's threaded muzzle and stays there. It gives the muzzle a mounting interface, so the suppressor attaches to the adapter instead of the bare barrel threads. One adapter per rifle lets you move one suppressor between them. Many are quick-detach designs, and some also work as a muzzle brake or flash hider.
This one fits barrels threaded 1/2x28 and presents the RD KFM QD interface. A suppressor with a matching RD KFM QD mount attaches to it. It comes in 2 thread pitches, so pick the one that matches your barrel.
How mounting systems work →- Type
- Muzzle Device
- Overall length
- 2.2″
- Weight
- 3.36 oz
- Material
- SAE/AISI 8620
- Attaches to
- 1/2x28
- Presents
- RD KFM QD
- HUB compatible
- Yes
- Tool access
- rear
- MSRP
- $59
Prices are manufacturer's suggested retail (MSRP). What you pay may differ.
597 suppressors in the catalog take this part, across 92 manufacturers including AAC, AB Suppressor, Abel Co. You aren't locked into one manufacturer's suppressors.
- Radical Defense CS3
- AAC 300-SD
- AB Suppressor A-10 5.56
- …and 594 more.
Which ones fit your barrel and host?
See all 597 in the Builder- 1/2x28
- 5/8x24
Radical Defense sells this part in 2 thread pitches. They are one product on this page; pick the pitch that matches your barrel in the Builder.
- The RD KFM taper lock flash hider was designed around an agency requirement to reduce visible flash signature by 90% over a standard A2 Birdcage, without exceeding the form factor of the A2 Birdcage, while also acting as a suppressor host.
- The KFM is adaptable all the way from 5.56mm carbines to 12.7mm machine guns, with various thread pitches available, and is the standardized mount to install RD suppressors.