Accessory Compatibility Guide
GDM® accessories are designed to integrate seamlessly with specific suppressor models, thread patterns, and mounting systems.
Use this guide to confirm compatibility before purchasing. If you’re unsure, your Class 3 FFL / SOT dealer or our support team can assist.
How To Use This Guide
1. Identify Your Suppressor
Confirm the exact suppressor model and caliber.
2. Check Thread Pattern Or Mount Type
Match barrel threads or mounting system (direct thread, QD, HUB, etc.).
3. Confirm Accessory Compatibility
Use the tables below to verify fitment.
Always verify thread pitch and mounting system before ordering.
Suppressor Mount Compatibility
| Suppressor Model | Mount Interface | Dead Air KeyMo / Xeno (HUB Adapters) | SilencerCo ASR (Bravo HUB Adapters) | Rearden / Q Plan B (Atlas-Style HUB Adapters) | Griffin Armament Plan A (HUB Adapters) | YHM (HUB adapters) | Rugged (HUB adapters) | Any Third-Party Mounting System With HUB / Bravo (1.375 × 24) Adapter | Dead Air HUB Booster Assemblies | SilencerCo HUB Booster Assemblies | Rugged HUB Booster Assemblies | Any Third-Party Booster Assembly With HUB / Bravo (1.375 × 24) Adapter |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GDM® 30C | 1.375 x 24 HUB | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | — | — | — | — |
| GDM® 30K | 1.375 x 24 HUB | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | — | — | — | — |
| GDM® 30M | 1.375 x 24 HUB | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | — | — | — | — |
| GDM® 30L | 1.375 x 24 HUB | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | — | — | — | — |
| GDM® 556 | 1.375 x 24 HUB | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | — | — | — | — |
| GDM® 556K | 1.375 x 24 HUB | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | — | — | — | — |
| GDM® 556Ti | 1.375 x 24 HUB | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | — | — | — | — |
| GDM® 9Ti | 1.375 x 24 HUB | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ |
| GDM® 45 | 1.375 x 24 HUB | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ |
| GDM® RFC | 1.375 x 24 HUB | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | — | — | — | — |
| GDM® 22AL | 1.375 x 24 HUB | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | — | — | — | — |
| GDM® 46 | 1.375 x 24 HUB | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | — | — | — | — |
| GDM® 50 | 1.375 x 24 HUB | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | — | — | — | — |
Thread Pattern Compatibility
| Barrel Thread | GDM® LH QD Mount for Hideout | GDM® RH QD Mount for Hideout | GDM® Hideout Muzzle Device | GDM® Hideout Hybrid Muzzle Brake | GDM® Direct Thread Mount | GDM® Muzzle Nut | GDM® Hades Blast Diverter | Torrent® Orthrus 9mm Direct Thread Mount | Torrent® Orthrus 9mm 3 Lug Adapter |
|---|---|---|---|---|---|---|---|---|---|
| 1/2 x 28 | — | — | ✔️ | ✔️ | ✔️ | — | — | ✔️ | — |
| 1/2 x 32 | — | — | — | — | ✔️ | — | — | — | — |
| .578 x 28 | — | — | ✔️ | — | ✔️ | — | — | — | — |
| 5/8 x 24 | — | — | ✔️ | ✔️ | ✔️ | — | — | — | — |
| 5/8 x 32 | — | — | — | — | ✔️ | — | — | — | — |
| 11/16 x 24 | — | — | — | — | ✔️ | — | — | — | — |
| M16 x 1 | — | — | ✔️ | — | — | — | — | — | — |
| 13.5 x 1 | — | — | ✔️ | — | — | — | — | — | — |
| 14 x 1 | — | — | ✔️ | ✔️ | — | — | — | — | — |
Accessory → Suppressor Cross-Check
| Suppressor Model/Accessory | GDM® LH QD Mount for Hideout | GDM® RH QD Mount for Hideout | GDM® Hideout Muzzle Device | GDM® Hideout Hybrid Muzzle Brake | GDM® Direct Thread Mount | GDM® Muzzle Nut | GDM® Hades Blast Diverter | Torrent® Orthrus 9mm Direct Thread Mount | Torrent® Orthrus 9mm 3 Lug Adapter |
|---|---|---|---|---|---|---|---|---|---|
| GDM® 30C | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | — | — (Compatible with Torrent® 9mm suppressors) | — (Compatible with Torrent® 9mm suppressors) |
| GDM® 30K | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | — | — | — |
| GDM® 30M | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | — | — | — |
| GDM® 30L | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | — | — | — |
| GDM® 556 | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | — | — | — | — |
| GDM® 556K | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | — | — | — | — |
| GDM® 556Ti | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | — | — | — | — |
| GDM® 9Ti | — | — | — | — | ✔️ | — | — | — | — |
| GDM® 45 | — | — | — | — | — | — | — | — | — |
| GDM® RFC | — | — | — | — | — | — | — | — | — |
| GDM® 22AL | — | — | — | — | — | — | — | — | — |
| GDM® 46 | — | — | — | — | ✔️ | ✔️ | — | — | — |
| GDM® 50 | — | — | — | — | ✔️ | — | — | — | — |
| GDM® LH QD Mount for Hideout | — | — | ✔️ | ✔️ | — | — | ✔️ | — | — |
| GDM® RH QD Mount for Hideout | — | — | ✔️ | ✔️ | — | — | ✔️ | — | — |
| GDM® Hideout Muzzle Device | ✔️ | ✔️ | — | — | — | — | ✔️ | — | — |
| GDM® Hideout Hybrid Muzzle Brake | — | — | — | — | — | — | — | — | — |
| GDM® Direct Thread Mount | — | — | — | — | — | — | ✔️ | — | — |
| GDM® Muzzle Nut | — | — | — | — | — | — | — | — | — |
| GDM® Hades Blast Diverter | ✔️ | ✔️ | ✔️ | — | ✔️ | — | — | — | — |
| Torrent® Orthrus 9mm Direct Thread Mount | — | — | — | — | — | — | — | — | — |
| Torrent® Orthrus 9mm 3 Lug Adapter | — | — | — | — | — | — | — | — | — |
Compatibility information is provided for reference only. Final fitment and safety verification should be completed by a qualified gunsmith or Class 3 FFL / SOT.
GDM® is not responsible for improper installation or use.