Description
Short cans usually mean compromises, but the DS-K D from Maxim Defense pulls off the compact thing without giving up much at all. At 5.9 inches long and 1.75 inches in diameter, it adds barely any bulk to the end of your rifle, yet it still brings 5.56 fire down below hearing-safe levels. Maxim's own testing per MIL-STD-1474D averaged 134 dB at the shooter's left ear on a 10.3 inch AR, which is impressive territory for a K-sized suppressor.
What Makes the DS-K D Different
The heart of this can is Maxim's M-Kore technology, a precision core design that keeps gas blowback and cyclic rate gain noticeably lower than traditional baffle designs. That means less gas in your face, a cleaner-running host gun, and better long-term reliability out of your rifle. The core also has integrated carbon cutters, so scraping fouling out of the tube during cleaning is far less of a chore. Construction is a Grade 9 titanium tube wrapped around a 17-4 stainless steel core, finished in Cerakote and DLC. Maxim went with Grade 9 titanium here instead of the pricier Grade 5 used on the DSX line because the DS series simply doesn't need it, and that keeps the weight down to 18 ounces without sacrificing durability.
Running the DS-K D on Your Rifle
This version ships as a direct thread 1/2×28 mount, so it spins right onto most threaded 5.56 barrels with no proprietary muzzle device required. It's rated for sustained and full-auto fire on barrels 10.3 inches and longer, which covers everything from SBRs on up to 16 inch carbines. If you want one hard-use can for a duty-style setup, a truck gun, or just a range rifle you shoot a lot, this is the kind of suppressor you bolt on and stop thinking about.
A DS Series Can Built to Take Abuse
The DS series shares its DNA with Maxim's DSX line, the same family of suppressors that has run SOCOM-style endurance testing. It's made in the USA and built for people who put real round counts through their gear, not just the occasional weekend outing.
Key Specifications
- Caliber: .223 Rem / 5.56 NATO
- Mount Type: Direct Thread, 1/2×28
- Overall Length: 5.9 in
- Diameter: 1.75 in
- Weight: 18 oz
- Tube Material: Grade 9 Titanium
- Core Material: 17-4 Stainless Steel
- Finish: Cerakote / DLC, Black
- Minimum Barrel Length: 10.3 in
- Firing Rating: Full-Auto Rated
- Sound Performance: 134 dB avg at left ear, 10.3 in 5.56 (MIL-STD-1474D)
- Manufacturer Part Number: MXM-48064
- UPC: 680017480646
- Made In: USA
What’s Included
- Maxim Defense DS-K D 5.56 suppressor with 1/2×28 direct thread mount
- Owner's manual
Frequently Asked Questions
What barrels can I run the Maxim Defense DS-K D on?
The DS-K D is rated for barrels 10.3 inches and longer in .223 Rem or 5.56 NATO. That covers most SBR builds and standard carbines. If you need to go shorter than 10.3 inches, Maxim's DSX series is the one built for that job.
How quiet is the DS-K D on a short-barreled AR?
Maxim's testing per MIL-STD-1474D averaged 134 dB at the shooter's left ear on a 10.3 inch 5.56 AR, which is below hearing-safe thresholds. Real-world results will vary a bit with ammo, barrel length, and conditions, but for a can this short it performs remarkably well. The M-Kore design also keeps gas blowback low, so you're not eating gas at the ear with every shot.
Is the DS-K D full-auto rated?
Yes. It's rated for both sustained and full-auto fire as long as you respect the 10.3 inch minimum barrel length. The 17-4 stainless core and titanium tube are built to handle heat and hard use, and the DS series shares its design lineage with Maxim's DSX cans that have been through SOCOM-style endurance testing.
How does the DS-K D differ from the Maxim DSX suppressors?
The DS series drops the secondary tube retention ring and uses Grade 9 titanium for the tube instead of the more expensive Grade 5 found on the DSX. Performance-wise it's the same family of M-Kore suppressors, just tuned for a lighter build. The trade-off is the 10.3 inch barrel minimum, where the DSX is cleared for shorter barrels.


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