$1,199.00
🔇 NFA made simple — we are an SOT/Class III dealer and walk you through the entire ATF process in-house. Questions? Call (817) 393-4000 before you buy.
AAC 300-SD .300 Blackout modular suppressor — purpose-built for suppressed .300 BLK. $0 NFA stamp (OBBBA). Western Sport TX.
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Product Description
⚠ NFA ITEM — SUPPRESSOR
This is a federally regulated suppressor under the National Firearms Act. Purchase requires BATFE Form 4 transfer, background check, and $200 NFA tax stamp — now $0 under the One Big Beautiful Bill Act (OBBBA). Buyer must be 21+, US citizen, NFA-legal state, no disqualifying criminal history. Allow about two weeks or less for ATF approval. Western Sport handles all paperwork — call 817-393-4000.
This is a federally regulated suppressor under the National Firearms Act. Purchase requires BATFE Form 4 transfer, background check, and $200 NFA tax stamp — now $0 under the One Big Beautiful Bill Act (OBBBA). Buyer must be 21+, US citizen, NFA-legal state, no disqualifying criminal history. Allow about two weeks or less for ATF approval. Western Sport handles all paperwork — call 817-393-4000.
AAC 300-SD .300 Blackout Modular Suppressor — Black
The AAC 300-SD is a modular suppressor purpose-built for .300 Blackout — one of the most suppressor-optimized cartridges in existence. The 300-SD’s modular design allows configuration changes to suit different hosts and suppression goals, and it handles both subsonic and supersonic .300 BLK loads. Whether you’re running 220gr subsonic for hearing-safe report or 125gr supersonic for terminal performance, the 300-SD is built to perform across the full .300 Blackout spectrum. AAC’s American manufacturing and HUB-platform integration make this a top-tier choice for .300 BLK AR builds.
| Spec | Detail |
|---|---|
| .300 Blackout — supersonic and subsonic | Caliber |
| Modular — configurable configuration | Design |
| Black | Finish |
| Also compatible with 5.56 and smaller | Multi-Cal |
| Suppressor — Form 4, $0 stamp (OBBBA) | NFA Class |
.300 Blackout: The Suppressor-Optimized Cartridge
.300 Blackout was engineered from the ground up for suppressed use. Its subsonic loads (typically 220gr+) produce hearing-safe report with a quality suppressor even without ear protection. The 300-SD’s modular design allows you to optimize for either subsonic suppression performance or overall system length for supersonic use. No other common AR cartridge is as natively suited for the suppressed role as .300 Blackout.
FAQ
Where is AAC made? AAC (Advanced Armament Corporation) is an American suppressor manufacturer with deep roots in the NFA industry. Their suppressors are made in the USA.
What NFA process does Western Sport use? We handle BATFE Form 4 e-File, fingerprints, and coordination for your suppressor transfer. Under OBBBA, the $200 tax stamp is now $0. Allow about two weeks or less for ATF approval. Call 817-393-4000.
Do HUB suppressors require a muzzle device? The HUB mount version requires a compatible HUB blast diffuser, ratchet brake, or flash hider (sold separately). Direct thread versions thread directly onto the barrel with no separate device needed.
Why Buy From Western Sport?
Western Sport is a licensed FFL/SOT dealer in Roanoke, Texas (North Texas). FFL/SOT since 2007. We carry AAC suppressors and handle all NFA Form 4 paperwork in-house. Call 817-393-4000.
Recent eForm 4 approvals have been coming back in about two weeks or less — see our NFA wait times guide for current figures.
Additional information
| Weight | 1.188 lbs |
|---|---|
| Brand | Advanced Armament Corp |
| Caliber | |
| Finish | |
| Frame Size | |
| Mount Type |
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