SilencerCo Spectre 9k
The SilencerCo Spectre 9k is an all-titanium 9mm suppressor built to be as small and light as physics allows — 3.17 ounces and just 3.69 inches long, using a tubeless internal design that packs more baffle volume into a shorter can than a conventional tube-style suppressor. It's full-auto rated for subsonic .300 Blackout and semi-auto rated for supersonic .300 Blackout in addition to 9mm, and it runs on SilencerCo's Alpha mount system — meaning it can move between a carry pistol, a PCC, and an MP5-pattern host without buying a separate can for each.
Read our full SilencerCo Spectre 9k Buying Guide ↓
What Makes the Spectre 9k Different
Most suppressors use a tube-and-baffle-stack design, where the baffles sit inside an outer tube that adds length and weight without contributing to sound reduction. The Spectre 9k's tubeless architecture builds the baffle stack as a self-supporting structure, maximizing internal volume within a genuinely compact envelope. Combined with Grade 5 and Grade 9 titanium construction, the result is one of the lightest full-auto rated 9mm suppressors available at any price.
Multi-Caliber Rating: 9mm and .300 Blackout
The Spectre 9k is rated for 9mm and both supersonic and subsonic .300 Blackout, with full-auto certification on subsonic .300 Blackout loads. That dual rating matters for shooters running a suppressed PCC or SBR in .300 Blackout who also want the same can to work on a 9mm pistol or subgun — one NFA-registered suppressor covering two of the most popular suppressor-host calibers.
Alpha Mount System: One Suppressor, Multiple Hosts
The Spectre 9k uses SilencerCo's Alpha mount ecosystem, which includes piston mounts in multiple thread pitches for tilting-barrel pistols, fixed-barrel mounts for PCCs, Alpha ASR for quick-detach use on rifles and carbines, and 3-lug mounts for MP5-pattern hosts. A shooter who owns a carry pistol, a 9mm PCC, and an MP5 clone can run all three off the same suppressor by swapping mounts rather than owning three separate cans.
Full-Auto Rating and Durability
The Spectre 9k's full-auto rating on subsonic .300 Blackout means it's built to handle sustained heat and pressure well beyond typical semi-auto civilian use, which also means a long service life under normal semi-auto range use. The titanium construction resists the corrosion that can affect steel suppressors used with corrosive or dirty ammunition over time.
Frequently Asked Questions
How much does the SilencerCo Spectre 9k weigh?
3.17 ounces — among the lightest full-auto rated 9mm suppressors available.
Can the Spectre 9k be used on a .300 Blackout rifle and a 9mm pistol?
Yes — it's rated for both 9mm and .300 Blackout (supersonic and subsonic), and the Alpha mount system lets it move between different host types.
What is the Alpha mount system?
SilencerCo's mounting ecosystem for the Spectre 9k, including pistol pistons, fixed PCC mounts, quick-detach ASR mounts for rifles, and 3-lug mounts for MP5-pattern hosts.
Is the Spectre 9k full-auto rated?
Yes, for subsonic .300 Blackout. It's semi-auto rated for supersonic .300 Blackout and 9mm use.
Browse our full Suppressors selection and see our how to buy a suppressor guide for the purchase process.