Product Preview: Detachable Magazine Kit For the Mossberg 500

posted on June 3, 2016
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
magkit.jpg

There is no doubt that pump-action shotguns are a viable self-defense option due to the manual, simplistic and almost fail-safe operation they employ. However, some shooters wind up shying away from the scattergun because of the difficulty in reloading it quickly—something that is even more frustrating during high-stress situations. Adaptive Tactical, LLC, has devised a solution in the form of a detachable-box magazine kit for the Mossberg Model 500, 590 and Maverick 88 shotguns.

In conjunction with Mossberg engineers, Adaptive designed a replacement magazine tube/well that offers a hook-and-rock style engagement that not only works well, it cleanly blends with Mossberg’s factory action. The Sidewinder Venom-SE 10-round box kit reviewed here contains all parts necessary for conversion along with the company’s Ex Performance stock and pistol grip, Wraptor fore-end and detachable 10-round Sidewinder Venom magazine.

Installation is very straightforward, although a bit of custom work is required. Removing the factory magazine tube was a bit of a chore, and some hand-fitting was required to install the replacement. Indexing the magazine tube perfectly required a bit of material removal via the supplied emery cloth.

The furniture provided within the kit completely changed the gun’s performance and handling. Despite the change of balance and downward-protruding 10-round magazine, range testing proved the system to be a viable option. Only one magazine ships with the kit, but additional magazines are available on the company’s website starting for around $50. Price: $300 (black), $340 (camouflage). Contact: Adaptive Tactical, LLC.; (208) 442-8000; adaptivetactical.com.

Latest

Taurus Expedition Rifleman Review 1
Taurus Expedition Rifleman Review 1

Rifleman Review: Taurus Expedition

Taurus entered the bolt-action rifle market with its Expedition, a Remington 700-pattern design that's built to be versatile and affordable.

New For 2025: Charter Arms Pathfinder II

Charter Arms updated one of the oldest models in its lineup with the new Pathfinder II, which features a lightweight 7075 aluminum frame, making it more well-balanced and easier to carry.

Review: Kimber 2K11

The 2011-style pistol was designed to address the capacity limitations of the single-stack M1911 platform, and Kimber's approach to the concept is its 2K11, a competition-ready offering with several notable features.

Favorite Firearms: A High-Flying Hi-Standard “A-D”

Manufactured in New Haven, Conn., in late 1940, this Hi-Standard pistol was shipped as a Model “A,” but a heavier Model “D” barrel was installed later to replace the original, light barrel, leading one American Rifleman reader to call it a Model “A-D.”

Ruger Helps Families In Need Through The Kids & Clays Foundation

In the effort to help tens of thousands of critically ill children and their families across the nation through local Ronald McDonald Houses, Ruger is among some of the industry’s foremost Platinum-level sponsors of The Kids & Clays Foundation.

Unlocking The Future: Smith & Wesson's "No Lock" Revolvers

The future is shaping up to be a good one for fans of Smith & Wesson revolvers. The iconic American company had released 14 new models thus far in 2025 at the time this was written mid-year. And, with one exception, they have all shared a common feature—no internal lock.

Interests



Get the best of American Rifleman delivered to your inbox.