Editor’s Choice: Rock River Arms MRK 20

posted on April 19, 2020

Rock River Arms, best known for its M1911s and AR-style rifles, is now in the semi-automatic striker-fired pistol business with its MRK 20 (pronounced Mark 20), a gun that takes some stylistic cues from Glock but has an anodized 7000-series aluminum frame with well-textured grip surfaces.

Rock River Arms' choice to go with an aluminum frame instead of the polymer grip frame often used for this style of gun means that there are some added benefits for the end user. Metal-frame pistols are more durable than polymer-frame pistols, allowing them to stand up to greater abuse.

Additionally, the hardened surface of the aluminum frame means that it can take different texturing patterns that aren't possible with a molded polymer frame, and Rock River Arms took advantage of that fact in the development of the MRK 20 by adding a unique, dimpled texture to the grip. The material also easily accepts durable finishes like Cerakote.

The gun, which has a grip angle more akin to an M1911, is 5" high and 7.25" in overall length. It comes with a threaded 4.5" stainless steel barrel with a 1:16" RH twist. Magazine capacity is 15 rounds, and its width is 1.35".

The stainless steel slide is nitrided with a black finish, and it comes out of the box optics-ready. While the MSRP of the new pistol is still to be determined, initial discussion suggested a price point of around $850.

Additionally, Rock River Arms has not indicated when the pistol will be available to consumers. Interested enthusiasts can keep an eye on
rockriverarms.com for the latest information.


Chip Mccormick Obituary F
Chip Mccormick Obituary F

Legendary Gunsmith Chip McCormick Passes Away

Chip McCormick, one of the firearm industry's leading innovators and a top competitor, passed away in early June 2021.

Taking The Long Shot: Bergara and CVA New Products 2021

Bergara and CVA, both owned by BPI Outdoors, hosted several "Long Shot Tour" events to show off new bolt-action and muzzleloading rifles for 2021. 

Best Seller: Ruger Precision Rimfire

The Ruger Precision Rimfire, chambered in .22 LR, .22 WMR and .17 HMR, was the fourth most purchased bolt-action rifle of 2020.

The Armed Citizen® June 11, 2021

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

NRA Gun of the Week: Ruger MAX-9

On this week’s “Gun of the Week” video preview, American Rifleman editors take to the range Ruger’s new pocketable 9 mm that is built for optics and increased capacity.

McMillan Stocks Founder Kelly McMillan Passes Away

Kelly McMillan, founder of McMillan Stocks and a giant in the shooting-sports industry, passed away on June 1, 2021.


Subscribe to the NRA American Rifleman newsletter