The Maxim Defense MS-57K is a compact 5.7x28mm suppressor built for lightweight performance and durability. Its stainless steel and titanium construction keeps weight low at just 8.4 oz, while the short 4.40" length maintains a compact profile. Brand: Maxim Defense Category: Suppressors Series: MS-57 K Model: MS-57K Caliber: 5.7x28mm Color: Black Material: Stainless Steel / Titanium Length: 4.40" Diameter: 1.50" Weight: 8.40 oz