Maxim Defense MS Series
The Maxim Defense MS Series covers pistol and sub-gun caliber suppressors: 9mm (MS-9), .45 ACP (MS-45), .22 LR (MS-22), and 5.7×28mm (MS-5.7 / MS-5.7K). The MS-9 and MS-45 are modular — configurable in short or long setups — and ship with a piston for semi-automatic pistol use. The MS-22 and MS-5.7 use Maxim's M-Kore™ technology. All feature 17-4 stainless steel baffles and 7075-T6 aluminum tubes. Fully user-serviceable with common tools. The MS-9 and MS-45 include a Dead-Air P-Series booster for tilting-barrel pistol compatibility.
MS-9 (9mm)
Caliber | 9mm |
Length | 5.375" (Short) / 7.5" (Long) |
Diameter | 1.375" |
Weight | 8.7 oz (Short) / 10.5 oz (Long) |
Mount | Ships with 1/2×28 piston; Dead-Air P-Series booster included |
Min Barrel Length | None |
Full Auto Rated | Yes |
MS-45 (.45 ACP)
Caliber | .45 ACP (pistol only — no PCC mount included) |
Length | 8.63" |
Diameter | 1.375" |
Mount | Ships with .578×28 piston |
MS-22 (.22 LR)
Caliber | .22 LR rimfire |
Construction | M-Kore™ design / 17-4 SS core / 7075 aluminum tube |
Mount | 1/2×28 direct thread |
MS-5.7 / MS-5.7K (5.7×28mm)
Caliber | 5.7×28mm — dedicated, optimized design |
Construction | M-Kore™ technology; handles full-auto 5.7×28mm fire |
Note | Purpose-built for 5.7×28mm — outperforms generic "5.7 rated" suppressors in both sound reduction and durability |
Key Features
Full pistol/sub-gun caliber lineup: 9mm, .45 ACP, .22 LR, and 5.7×28mm
MS-9: modular short/long configs; no barrel length restriction; Dead-Air P-Series booster included for tilting-barrel pistols
MS-45: .578×28 piston included; rated for .45 ACP pistols only (no PCC use)
MS-22: M-Kore™ design for .22 LR with integrated carbon cutters
MS-5.7/5.7K: dedicated 5.7×28mm design — full-auto capable, significantly better than "5.7 rated" all-caliber suppressors
All MS Series: 17-4 stainless steel baffles, 7075-T6 aluminum tube, hard coat anodized finish
Fully user-serviceable with common tools; easy disassembly for cleaning