Mossberg MMR Pro

Mossberg MMR Pro

In 2016, Mossberg revamped its MMR line of AR-15 rifles, and the initial offering was the MMR Carbine. This year, the brand is expanding the MMR family to include several new rifles, one of which is the MMR Pro in 5.56 NATO.

"The Mossberg MMR Pro delivers 3-Gun features for shooters looking for a competition-ready gun direct from the manufacturer," says Mossberg's Linda Powell.

https://files.osgnetworks.tv/10/files/2018/01/MMRProSpecs.jpg

The upper and lower receivers are made from 7075 T-6 aluminum, and the rifle comes with a dust cover, forward assist and M4 feed ramp—along with an AXTS Raptor ambidextrous charging handle designed for rapid charges from either strong or support side. The rifle features Mossberg's six-position adjustable stock that offers 3.25-inch of length of pull adjustment and Mossberg's Flex TLS (Tool-less Locking System) that allows for easy recoil pad swaps.

The trigger guard and pistol grip are Magpul's MOE models, and there's a hollow grip cavity that accepts Magpul storage cores. The MMR comes with a direct-impingement rifle-length gas system and a full-length top rail.


The big news across the MMR line is the addition of a brand-new trigger, the JM Pro Drop-In Match. Designed in conjunction with competitive shooter Jerry Miculek, the JM Pro features a four-pound trigger break with adjustable overtravel so shooters can customize the feel. In addition, Mossberg is offering the JM Pro trigger as an aftermarket accessory through its online store. Each rifle ships with a 30-round Gen 3 Magpul PMag.


Mossberg kept the MMR's weight right at seven pounds, even with the extra barrel length, which makes it a rifle that is easier to carry over long distance during competition. The longer, heavy-profile barrel helps balance the rifle and makes for a smoother, more stable movement when transitioning from one target to the next—as compared to rifles with thinner-profile 16-inch barrels.


https://files.osgnetworks.tv/10/files/2018/01/MMRPro2.jpg
The MMR Pro is built from the ground up to be a serious 3-Gun competition rifle and includes the brand-new JM Pro Drop-In Match trigger.

The handguard offers plenty of attachment points for those who like a lot of gear on their competition guns, but by itself the narrow aluminum handguard is quite comfortable. The AXTS Raptor charging handle is a real benefit whether you are a competition shooter or not because it's easy to find and operate even if you are wearing gloves or have a large variable optic mounted on the rifle.

When I tested the MMR Pro I mounted a Trijicon AccuPoint 3-9x40mm on the rifle, which is not a particularly large scope but big enough that it can get in the way if you are using a standard-sized charge handle.

I liked the original MMR line, having pushed one of those guns to the limit on a high-volume aerial hog shoot in Texas, so I had high hopes for the new MMR Pro. And the rifle didn't disappoint.


https://files.osgnetworks.tv/10/files/2018/01/MMRProBarrel.jpg
The SilencerCo ASR brake not only tames recoil, it's designed with a suppressor mount for easy addition of a can.

For the range test I used three different loads of varying weights, and the 1:8 twist barrel showed its versatility—including turning in a test-best 0.89-inch average with the lightest load of the bunch, Hornady's 40-grain V-MAX.

Testing the rifle both on and off the bench made it clear the new Mossberg trigger is indeed as good as the marketing hype suggests. It's extremely nice, breaking just a hair over four pounds on the test rifle and making it easy to deliver precise, accurate shots from the bench as well as when moving and engaging targets at various ranges in rapid succession as is the case when competing in 3-Gun.

This isn't a budget rifle that has a bit of upgraded furniture and claims to be a competition rifle. With the suggested retail price of $1,393 Mossberg is looking to attract the attention of serious shooters. And, based on what I experienced when I shot the rifle, I have to say Mossberg's claim that this is an out-of-the-box competition gun is legitimate.


https://files.osgnetworks.tv/10/files/2018/01/MMRProAccuracy.jpg
Throughout the test there were no failures to feed, fire, extract or eject. One note: The rifle I tested was outfitted with a Crimson Trace LiNQ pistol grip, but I have shot other rifles equipped with Magpul's MOE grip and have found it to be comfortable and secure.

Mossberg may always be known for its shotguns, but there's certainly no question the brand's AR lineup is worthy of consideration even by the most dedicated competitors. With the MMR Pro as its flagship model, Mossberg has something to hang its hat on. Now it's time to see what this rifle can do in the hands of the world's elite competition shooters.

Recommended for You

The new MSR 15 Long Range in .224 Valkyrie reaches out with authority. MSR

Review: Savage Arms MSR 15 LR

David Fortier - May 17, 2019

The new MSR 15 Long Range in .224 Valkyrie reaches out with authority.

Thompson/Center and S&W's Performance Center team up to build an entry-level long-range chassis rifle. Bolt-Action

Review: Performance Center-Thompson/Center LRR

Alfredo Rico - April 09, 2019

Thompson/Center and S&W's Performance Center team up to build an entry-level long-range...

Announced in 1958, the .264 and .338 Winchester magnums hit the market in 1959 amid one of the biggest media blitzes the industry had seen. Both were introduced in “new” versions of Winchester's beloved Model 70. Ammo

.264 and .338 Magnum - Winchester Twins

Craig Boddington - May 24, 2019

Announced in 1958, the .264 and .338 Winchester magnums hit the market in 1959 amid one of the...

See More Recommendations

Popular Videos

Black Hills Evolution of Rifle Cartridge: .308 Win. 175 Gr. Match

Black Hills Evolution of Rifle Cartridge: .308 Win. 175 Gr. Match

David Fortier talks with Jeff Hoffman of Black Hills Ammunition about the evolution of the .308 Win. 175 Gr. Match bullet.

Tactical Solutions Introduces New X-Ring Takedown SBR Rifle

Tactical Solutions Introduces New X-Ring Takedown SBR Rifle

Keith Feeley of Tactical Solutions sat down with Michael Bane at SHOT Show 2018 to talk about the new X-Ring Takedown SBR .22LR rifle.

Ruger Launches New American Rifle Predator in 6.5 Grendel

Ruger Launches New American Rifle Predator in 6.5 Grendel

OSG's Lynn Burkhead and Ruger's Matt WIlson kick off SHOT Show 2018 by taking a look at the Ruger Predator.

See more Popular Videos

Trending Stories

Wilson Combat's new Ultralight Hunter in .300 Ham'r puts the sport back in modern sporting rifles. MSR

Review: Wilson Combat Ultralight Hunter

Brad Fitzpatrick - March 18, 2019

Wilson Combat's new Ultralight Hunter in .300 Ham'r puts the sport back in modern sporting...

The Federal Berger Hybrid Hunter Ammo combines high BCs with a forgiving bullet profile and promises versatile performance. Ammo

Federal Berger Hybrid Hunter Ammo

Brad Fitzpatrick - April 30, 2019

The Federal Berger Hybrid Hunter Ammo combines high BCs with a forgiving bullet profile and...

The new Tromix .375 SOCOM offers great performance with less recoil than its .458 brother. MSR

Review: Tromix .375 SOCOM

David Fortier - March 15, 2019

The new Tromix .375 SOCOM offers great performance with less recoil than its .458 brother.

See More Stories

More MSR

The Springfield Armory Saint Free-Float 5.56 NATO is still a reliable, accurate rifle for a historically reasonable price. MSR

Review: Springfield Armory Saint Free-Float 5.56 NATO

James Tarr - September 21, 2018

The Springfield Armory Saint Free-Float 5.56 NATO is still a reliable, accurate rifle for a...

Springfield has chambered its Loaded M1A in 6.5 Creedmoor, and it's a perfect marriage. MSR

Review: Springfield Amory Loaded M1A

J. Scott Rupp - June 22, 2018

Springfield has chambered its Loaded M1A in 6.5 Creedmoor, and it's a perfect marriage.

In a nifty piece of engineering, POF-USA puts .308 power in the AR-15 platform. Reviews

POF-USA Revolution Review

David Fortier - June 18, 2019

In a nifty piece of engineering, POF-USA puts .308 power in the AR-15 platform.

See More MSR

GET THE MAGAZINE Subscribe & Save

Temporary Price Reduction.

SUBSCRIBE NOW

Give a Gift   |   Subscriber Services

PREVIEW THIS MONTH'S ISSUE

GET THE NEWSLETTER Join the List and Never Miss a Thing.

×