Mossberg brings detachable magazine 590M Shockwave to market

The new Shockwave 590M brings 10+1 rounds of 12 gauge to the party, with extra 5, 10 and 15-round magazines always a possibility. (Photo: Mossberg)

The new Shockwave 590M brings 10+1 rounds of 12 gauge to the party, with extra 5, 10, 15 and 20-round magazines always a possibility. (Photo: Mossberg)

The new non-NFA pump-action 12 gauge includes a 15-inch barrel and 10-shell detachable box magazine as standard options.

Announced Tuesday, the latest addition to Mossberg’s constantly growing Shockwave line is the 590M, blending the standard Raptor-gripped platform and its 27.5-inch overall length, with the company’s new series of detachable double-stack magazine offerings. While a single 10-shot magazine comes with the heavy-walled firearm, optional five, 10, 15 and 20-round capacity mags are sold as accessories.

The 590M features a safety strap on the corn cob fore-end along with sling swivel studs. Capable of holding 11 shells between the chamber and standard magazine, the newest Shockwave is billed as having a weight of 6.55-pounds, which is a full pound heavier than the standard model with its 6+1 capacity underbarrel tube mag.

Designed for use with 2.75-inch shells only, the mags are polymer with a self-lubricating body, hardened steel feed lips, and integral stabilizing ribs. A removable floor plate allows for cleaning while the springs are music wire.

Although the standard Shockwave 12 is newly listed as being available in an optional Cerakoted flat dark earth scheme or a coated stainless, for now, the 590M version is only offered in matte blue.

Retail is listed as $721, the same price point as the basic cylinder bore version of the full-sized detachable magazine variant of the Mossberg 590.

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