Griffin Armament 30 SD-K
The Griffin Armament 30 SD-K is a short, high-efficiency .30 caliber quick-detach rifle suppressor built around Griffin's patented HEDP™ baffle technology. Compatible with 7.62mm, .300 Blackout, 6.8 SPC, and 5.56mm (with M4SD mounts or A2 compensators), the 30 SD-K delivers an extraordinary 127 dB on .300 BLK subsonic — rivaling much larger suppressors. Uses the same Gate-Lok™ mounting family as the M4SD line, accepting USGI A2 spec compensators and Griffin's proprietary muzzle devices. No barrel length restrictions. Manufactured in Watertown, WI.
Specifications
Caliber Rating | 7.62mm / .300 BLK / 6.8 SPC / 5.56mm |
Construction | 17-4 PH stainless steel; CNC machined with wire EDM and TIG welding |
Mounting | GATE-LOK™ — compatible with 30SD/M4SD mounts and USGI A2 compensators |
Min Barrel Length | None (longer barrels promote longer service life) |
Sound (.300 BLK Subsonic) | 127 dB |
Sound (5.56mm) | 136 dB |
Sound (.308 Win) | 138 dB |
Key Features
Patented HEDP™ (High Efficiency Design Process) baffle technology — 127 dB on 300 BLK subsonic from a compact K-length can
Wide platform coverage: 7.62mm, .300 BLK, 6.8 SPC, and 5.56mm via M4SD or A2 mounts
GATE-LOK™ mounting: wear-free, ratchet-free QD interface; mounts compatible with USGI A2 and Griffin proprietary muzzle devices
Mounts precision-ground to ten-thousandths of an inch for repeatable, minimal POI shift
No barrel length restrictions; full-auto rated
Manufactured in Watertown, WI from domestic materials