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Premiering in the 5th Fast and Furious Movie, Fast Five, DSS Agent Hobbs has become a fan favorite. The intense, 44 Magnum wielding character has remained part of the series for F&F 6, 7, and 8 in one way or another. In Fast Five he premiered using a unique M4 style rifle and today we are going to break it down. To give you not only an insight into his rifle but how to build your own.


So DSS Agent Hobbs uses a slightly modified M4A1 with a standard forged upper and lower receivers. These 7075 T6 aluminum models are well reputed for their strength and durability. They are the most common type of lower and upper on the market and are often considered Mil Spec. Hobbs does use a real full auto lower. You can tell it’s a real M4A1 lower by looking closely at the three pins in the lower. A three pin lower is a machine gun, the third pin being placed right above the safety selector.

While the receivers aren’t fancy, they are easy to find and affordable. Sadly, if you aren’t a SOT dealer or manufacturer, it’s gonna be difficult to get a full auto lower. However, for the everyday Joe, a standard Semi auto lower receiver will work just fine.


Following the standard M4 layout it appears we have a pretty standard layout when it comes to the lower parts. Of course, I can’t identify each and every part of the lower parts kit, but it’s safe to say it’s likely a standard Mil-Spec LPK. Looking closely at photos and screenshots from the film we don't see anything fancy.


Nothing’s ambidextrous or extended anyway. It’s a simple, reliable, and affordable LPK. The only main difference is the A2 grip is not used, and we’ll talk about that later. Of course, its also includes the parts to introduce burst or full auto. We can’t get those, but a standard LPK is pretty easy to come by.


A forged flat top upper, with a forward assist and brass deflector, is the most common upper in existence. Like the lower, it simply works without being fancy. You gotta have the flat top upper to attach Hobb’s optic of choice, which we’ll talk about later.

Attached to this Upper is an M4A1’s 14.5-inch barrel. You can go the 14.5-inch route yourself but have to permanently attach a muzzle device to the barrel that brings the barrel length to 16 inches. By permanent we are talking pinned and welded.

It may be easier to go with a 16-inch barrel and eat the extra 1.5 inches. However, for authenticity sake, the muzzle device Hobbs uses is long enough to bring the barrel to 16 inches.


The rail Hobbs uses is a drop in two piece quad rail. We know this because the bottom section is missing and Hobb’s replaced it with something… interesting. (More on that later.) I don’t have a ruler, but I’d put money on it being a 7-inch standard M4 rail. Quad rails seem to be going out of fashion for the most part, but Midwest Industries still makes some very high quality, two piece quad rails.

Hobbs doesn’t rock any accessories on his rail system, but that won’t necessarily stop you from adding flashlights, lasers, kitchen sinks, and whatever else you need. I rock a keymod Midwest Industries rail system on one of my builds and absolutely love it. It’s durable, has an excellent finish, and I didn’t have to spend a paycheck on it. Their quad rail systems are basically replica’s of the standard mil spec rails, and it works perfectly for a Hobbs build.

Front Sight

Keeping with the standard M4A1 design, Agent Hobbs uses a standard fixed front sight. It’s actually required on this build due to the bottom attachment. I’m a big fan of the A2 front sight. It’s very sturdy and strong. It’s the perfect height and simply works. While folding sights are sexier, the A2 sighting system does work. They are widely available from a variety of companies. However, Daniel Defense is my go to. DD makes amazing rifles, and gear and this particular sight is only like 15 bucks.


I don’t have much to say about Hobb’s stock. It's a standard 6 position M4 style collapsing stock. Nothing fancy. It’s simple and effective. Personally, I prefer the models by Magpul and Bravo Company. However, the standard M4 stock works and has worked with military forces for the entire War on Terror.

Rear Plate

So it’s usually hard to see the really small parts using stills from the movie. However, one scene, in particular, does make it very easy to see what the rear end plate the Rock is rocking. Instead of a standard end plate, it is a sling adapting end plate. It’s likely ambidextrous and features two circular points to attach a single point sling also. Agent Hobbs is a fan of the single point sling, so the end plate makes sense.

Whoever makes the end plate is another question altogether. That would be impossible for me to determine without actually handling the rifle. However, there is an abundance of these sling plate end plates out there, and most are similar to one another. This model by Doublestar is nearly identical and is an affordable option for any AR build, including any potential Hobb’s builds.


The rear grip is a lot like the muzzle device. I figured it would be a standard M4 style A2 grip with the nub and all. It’s hard to find a clear picture since in most movie stills with the gun Agent Hobbs is gripping it. However, I found a still at IMFDB of the Rock training with the rifle. This showed a smooth, swept back grip that was clearly not an A2 grip.

Again I had to go diving to find the exact model. I’m almost 100% positive it’s a Tango Down BG 16 Rifle Grip. The swept back nature and grip texture pattern greatly resembles the Tango Down BG 16. They both also lack the curving upward portion. The picture isn’t great, but this is as close to a similar grip as I can find.

Agent Hobbs w/ Tango Down BG 16 Rifle Grip

Agent Hobbs w/ Tango Down BG 16 Rifle Grip

Grip angle is an endless debate and is often more discussed when it comes to handguns. It makes itself a large part of the Glock vs 1911 debate. However, like most things, this is objective to the user.

Tango Down makes quality gear, and I personally love their stubby grip. I have no doubts this grip is well made and high quality. Tango Down makes the grip textured and untextured and in multiple colors. Here is the textured model, in FDE, I think it shows the texture a bit better, and it made it easier to match Agent Hobb’s actual gun.


Agent Hobbs has one of the most popular movie optics in existence. The C-More Tactical Red Dot sight. So it’s popular for two reasons. First and foremost iron sights are boring on movie guns. Secondly, the small nature of the C-More optic makes it easy for the audience to see the actor’s face, and make it appear they are using the optic.

Hobbs w/ C-More Tactical Red Dot sight

Hobbs w/ C-More Tactical Red Dot sight

With that said the C-More Tactical Red Dot sight is very well made and a solid option for a combat optic. C-More is mostly known for being hugely popular on the competition circuit. These low profile red dot sights were some of the first to be small enough for a handgun. The C-More Tactical Red Dot sight is a bit different than their competition sights. The C-More Tactical has a built in rear iron sight that is designed for the AR-15.

It naturally co-witnesses and the optic itself is very easy to use, and if it goes down the iron sights are ready to go. This is an excellent choice for Agent Hobbs from a practical standpoint. He already has a fixed front sight and needed a rear anyway. If the main optic goes down, he’s ready to rock and roll with iron sights.

Muzzle Device

Oh man, let’s talk Muzzle devices. If I weren't a stickler for the details, I would simply write it off as a standard A2 flash suppressor. However, this isn’t the case. While researching, I found one odd pic that made it very clear this wasn’t the case. I searched high and low to find more pics and finally found a few distinctive qualities. It’s a five slot flash hider with aggressive teeth at the end. I combed through page after page of muzzle devices until I found it, the Yankee Hill Phantom flash hider.

Yankee Hill flash hider

Yankee Hill flash hider

The Yankee Hill flash hider is well made and does an excellent job of displacing flash, especially from the 14.5-inch barrel. It’s also over 2 inches long, so your 14.5-inch barrel will be legal once permanently attached. The Shark’s Teeth are apparently for muzzle thumps and breaking glass, but due to a particular attachment, they wouldn’t really be usable.

Yankee Hill Machine does make good gear, and it’s often quite affordable. This particular model makes a lot of sense tactically. The 223 Remington and by extension the 5.56 are designed for a 20-inch barrel. In 16 or 14.5 inch barrels they create quite a bit of flash, and this aggressive flash hider keeps you from losing your natural night vision while firing.

That Big Stand Out Piece

Alright, so the elephant in the room is the underbarrel attachment to Agent Hobbs’ rifle. It affects the weight and size of the entire weapon and makes it necessary to attach a fixed front sight. The underbarrel attachment is the M26 CASS 12 gauge shotgun. This system is unique and really cool looking. It’s a pump action shotgun that uses a side handle to pump the shotgun. The shotgun is magazine fed and is designed and built by C-More optics. The system is made to enhance the abilities of the standard M4 carbine and give the user breaching capability.

M26 CASS 12 gauge shotgun

Hobbs w/ M26 CASS 12 gauge underbarrel shotgun

The M26 has been issued to the U.S. Army on a small scale basis and has proven to be an effective little gun. It’s similar to the old school Knight’s Armament Master Key system, except it’s more balanced, lighter in weight, and shorter. The M26 CASS is a unique, and even effective system that can be used as a stand-alone device. It’s not necessarily designed for combat use but could be in a pinch.

It’s much better suited for breaching loads, or even less lethal loads in a pinch. With the rising use of commercial remote control drones, it may have a future in taking them out as well.

M26 CASS 12 gauge shotgun

M26 CASS 12 gauge shotgun

Here’s the bad news

C-More doesn’t produce civilian variants of this gun, and it would be an NFA item. That’s not a big deal, but unfortunately, C-More does not sell the weapon to civilians. There was some talk they may in the future, but as of now, it's a no go. However, there are tons of Airsoft variants. It will at least complete the look of the Hobbs rifle.

Agent Hobbs

Agent Hobbs is a big character, and he certainly needed unique and big weapons to make his first appearance. His combination AR-15/Shotgun is certainly an eye catcher, as is his Performance Center 44 magnum. His rifle is one of the easier to build in all ways except the M26 shotgun. His rifle isn’t over the top and isn’t much different from a basic Army M4 equipped with the M26. However, it is memorable, and a perfect companion for the character.

Build Breakdown

  1. Battle Arms Development AR-15 Forged Wire EDM Lower Receiver ($199)
  2. Lower Parts Kit ($69)
  3. Seekins Precision Forged 223 Upper ($228)
  4. Rainier Arms Mountain Series CHF Barrel 5.56mm Nato 14.5″ Mid Weight Profile (Mid Gas System) ($300)
  5. Gen 2, 2-Piece Carbine Length Free-Float Forend ($130)
  6. Daniel Defense Fixed A2 Front Sight ($15)
  7. AR-15 Stock Assy Collapsible Mil-Spec ($50)
  8. Double Star Ambidextrous Sling Adapter Plate ($13)
  9. Tango Down BG-16 Rifle Grip Polymer ($20)
  10. C-More Tactical Red Dot ($293-$359)
  11. YHM Phantom Flash Hider ($29)

* Items may have been out of stock or discontinued at the time of this writing.

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