Home » Shop » Maxim Defense Industries PDX, Short Barreled Rifle, 300 Blackout, 5.5″ Barrel, 20Rd
Home » Shop » Maxim Defense Industries PDX, Short Barreled Rifle, 300 Blackout, 5.5″ Barrel, 20Rd
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Sale!
$2,495.00Original price was: $2,495.00.$2,245.50Current price is: $2,245.50.
🚚 Ships to your local FFL — we handle the paperwork and coordinate with your dealer. Most firearms ship same or next business day. Local? Free in-store pickup in Roanoke, TX.
⚠ NFA ITEM — SHORT BARREL RIFLE (SBR) Federally regulated SBR under the National Firearms Act. BATFE Form 4, background check, $200 NFA tax stamp now $0 under OBBBA. Buyer must be 21+, US citizen, NFA-legal state. Allow 30–90 days. Western Sport handles all paperwork — call 817-393-4000.
Maxim Defense PDX SBR — .300 BLK 5.5" — FDE
The Maxim Defense PDX .300 BLK FDE SBR is RECOIL Magazine’s “Best of SHOT 2019” PDX platform in FDE Cerakote, chambered in .300 Blackout — the optimal caliber for suppressed short-barrel use. Born from the SOCOM PDW solicitation, the PDX delivers maximum lethality in the smallest package: 18.75" overall length, 5 lbs 11 oz, HATEBRAKE™ muzzle booster, and Maxim’s SCW™ stock system. .300 BLK with a 5.5" SBR barrel — add a can to the HATEBRAKE™ for hearing-safe suppressed fire with 220gr+ subsonic loads. FDE Cerakote. Hard anodized. 6Al-4V titanium, 17-4 stainless steel. Made in USA. ISO 9001:2015.
Maxim Defense Industries is a Minnesota-based, ISO 9001:2015 certified American firearm manufacturer. Every platform — PDX, SDX, MD:9 — is engineered from military-grade materials and developed alongside the SOCOM PDW solicitation. Maxim Defense builds its firearms from 6Al-4V titanium, 17-4 stainless steel, 7075-T6 and 6061 aluminum. Made in the USA to order.
Frequently Asked Questions
What is an SBR? A Short Barrel Rifle has a rifle barrel under 16″ and is federally regulated under the NFA. BATFE Form 4, background check, $200 NFA tax stamp — now $0 under OBBBA.
How long does NFA approval take? Typically 30–90 days. Western Sport handles all Form 4 paperwork in-house. Call 817-393-4000.
Is the $0 NFA tax stamp permanent? The OBBBA eliminated the $200 NFA tax. Western Sport recommends calling to confirm current status.
Does the MD:9 use standard magazines? The Maxim Defense MD:9 is Glock 9mm magazine compatible — runs the same standard-capacity Glock mags you already own.
How to buy NFA at Western Sport? Call 817-393-4000. Roanoke TX FFL/SOT since 2007. Form 4 handled in-house. $0 stamp (OBBBA).
Why Buy From Western Sport?
Western Sport is a licensed FFL/SOT dealer in Roanoke, Texas (North Texas), FFL/SOT since 2007. We specialize in NFA transfers and handle all BATFE Form 4 paperwork in-house — so you get a smooth, guided NFA purchase experience. The $0 NFA tax stamp under OBBBA makes now the best time to buy. Call 817-393-4000 with questions.
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