The SilencerCo ASR 9mm Flash Hider M13.5x1LH is an ASR 9mm flash hider from SilencerCo, built to M13.5×1 LH spec. SilencerCo machines it (SilencerCo part no. AC1561) to factory tolerances rather than as a generic aftermarket stand-in. It is a flash hider that doubles as this suppressor’s mounting interface, cutting muzzle flash while giving the can a fixed thread to index on. Running it bare, the flash hider knocks down visible signature at dusk or indoors on its own, and with the suppressor threaded on, the same interface keeps the can indexed consistently. It is a practical pickup for a home-built suppressor host or a duty rifle that needs this exact piece of hardware on hand.

Key Specifications

• M13.5×1 LH thread pattern is the thread this device mounts on, and it also sets the interface the suppressor itself indexes to.
• Left-hand thread runs in reverse of a standard right-hand thread, which keeps the part from backing itself off the barrel under recoil on hosts that require it.
• 9mm is the caliber this part is built and sized for.

Frequently Asked Questions

What thread does this flash hider require? It threads onto a M13.5×1 LH muzzle; confirm your barrel is cut to that pattern before ordering.

Does the flash hider still work with the suppressor off? Yes, it reduces visible muzzle flash on its own; the suppressor is optional, and the flash hider’s thread is also what the can indexes onto when it is mounted.

What caliber is this part built for? It is sized for 9mm; running it on a different caliber host is not something the manufacturer specifies as safe or correct.

Buy the SilencerCo ASR 9mm Flash Hider M13.5x1LH

Order the SilencerCo ASR 9mm Flash Hider M13.5x1LH directly from Schaefer Defense and get it moving toward your bench today. Ships fast from our Lubbock, Texas gun shop, direct to your door with no FFL required. Check out the rest of our muzzle devices lineup for the other small parts that keep a suppressor setup running right.