Sound suppressors may be installed onto the KRISS Vector SBR, SDP and SMG models, which have a 5.5" or 6.5" threaded barrel. The rimfire Vector 22 CRB is also capable of using a sound suppressor.
The suppressor must either be designed for use with a fixed barrel or make use of a fixed barrel spacer. Contact your suppressor manufacturer for more information.
For best performance, we highly recommend using a direct-thread suppressor that is indexed against the muzzle, not the shoulder.
Make sure to follow all local and federal regulations regarding suppressor use and ownership.
Barrel Threading Specifications
GEN 2 MODELS
| Thread Specifications | |
| Caliber | Muzzle Thread |
| .45 ACP | M16x1 LH |
| 9x19mm | 1/2×28 RH |
| 10mm Auto | 9/16×24 RH |
| .40 S&W | 9/16×24 RH |
| .22LR | 1/2×28 RH |
GEN 3 MODELS
| Thread Specifications | |
| Caliber | Muzzle Thread |
| .45 ACP | .578/28 RH |
| 9x19mm | 1/2×28 RH |
| 10mm Auto | 9/16×24 RH |
| .40 S&W | 9/16×24 RH |
| .22LR | 1/2×28 RH |
Can the Vector CRB use a suppressor?
The centerfire KRISS Vector CRB Gen 1, Gen 2 and Gen 2.1 configurations are not intended for use with a suppressor and no threaded barrel is offered for this configuration.
The Centerfire KRISS Vector CRB Gen 3 configuration is equipped with a threaded barrel and can be used with a suppressor. Please see the table above for the correct thread specification for your caliber.
Why M16x1 LH for .45 ACP Gen 2 models?
The threading specification of M16x1 LH for .45 ACP is larger than the smaller standard of .578x28. The larger threading specification allows for a heavier barrel.
We do not recommend the use of an adapter to adapt .578x28 to M16x1 LH.