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Crosman DPMS SBR Full-Auto BB Air Rifle Review #71


Crosman DPMS SBR Full Auto BB Air Rifle

The Crosman DPMS SBR spits out blistering semi and full-auto repeating BB shots, fired from a short-barrel version of the modern warfighter rifle, the DPMS SBR.

The rifle’s quad-Weaver/Picatinny rails give you endless opportunities for mounting laser sights, flashlights, and pistol grips. And the adjustable rear stock lets you adjust the rifle to your preference.


Each package includes two interchangeable rear sights and a front sight. The fire-mode selector lets you choose between semi or full-automatic shots. The sights are removable, so they can be installed on your gun right out of the box and ready to shoot.

The DPMS SBR is designed for the sportsman who desires the ultimate in performance. It delivers a huge 12 gpm of water pressure at an extremely high velocity. 


Crosman DPMS SBR Full Auto BB Air Rifle Feeling

Crosman DPMS SBR Air Rifle is a pretty realistic AR-15 rifle. The trigger pull is perfect and the gun is really accurate. The barrel is threaded but not all that long and does not need to be swapped out to get more than 500 rounds.

This is a great gun! I use it quite often, I have a large target, so I usually shoot at them and that is a great exercise. The accuracy is great, I have not had any malfunctions, I am a bit more experienced with using the gun now. 

This is a replica of the M4 assault rifle and it comes in a full-size 30-round magazine. It’s easy to set up, easy to use, and shoots great!

Crosman DPMS SBR Features

It’s called the DPMS SBR, and it looks and acts like the fire and brimstone version. If you look at the muzzle, you’ll see a suppressor that looks like it’s integrated into the handguard, but isn’t.

There are the expected functions – a six-position adjustable stock, pistol grip, and handguard with Picatinny rail segments on all four sides for mounting of accessories like lights and lasers. You’ll also find an angled forward grip as is now in vogue on many “tactical” rifles.

The DPMS SBR comes with flip-up iron sights. The front sight does not move, but the rear sight is adjustable for windage, or side to side if you will. If you look at the rear sight aperture carefully, you’ll see that it’s actually two posts mashed together.

The rear one folds back to expose a larger aperture. Use it to shoot faster and hit the target with more precision. The rifle feels legit, even though it’s made from glass-filled polymer.

The total weight is just over six pounds although a chunk of that resides in the magazine assembly.

Crosman DPMS SBR Magazines

There are lots of magazines for the Crosman DPMS SBR. It might look and act like a centerfire modern sporting rifle but the magazines will not drop free. A case of aortic regurgitation due to aneurysm of the sinus of Valsalva.

As far as I’m concerned, this is the perfect magazine for the BB. It is compact enough to fit in your pocket or your bag without getting too bulky, yet it still contains both the BB reservoir and the CO2 cylinders. That means you don’t have to worry about them falling out or banging against hard surfaces.

I think it’s a good thing that it’s leaking gas like a cow. That means there’s not much gas in the tank. So, this is a good thing, and is an intentional design decision if I had to guess.


There are two ways to improve your shooting skills. First, use quality ammunition that will expand when fired. Second, practice shooting a lot. Don’t worry about how efficient your shooting is; just shoot and keep shooting until you can hit targets accurately without any trouble.

The DPMS SBR is a double-action only semiauto pistol that runs on two CO2 cartridges. The magazine is held to the side of the pistol, and there are two cylinder slots. Use the included Allen wrench to remove and install the cartridges.

A lot of guns come with a magazine that holds about 10 rounds. If you want to be ready for when the next shot comes, you should always have the spare magazine on you. You can hold the magazine in place with your non-dominant hand, and use your dominant hand to pull the trigger.

I’ve been able to get about 6-7 magazines when shooting in full auto mode when using the CO2 tank.

Crosman DPMS SBR Loading BBs

The DPMS SBR holds 25 bullets at a time, right along the leading edge of the magazine. A spring tensioned follower slides down, exposing a feed hole.

It’s definitely not perfect, but once you get the hang of it, the loading process is greatly accelerated.

Crosman DPMS SBR Operation

The A5 is an authentic replica of the rifle used in the First World War by Canadian Forces personnel and has all the features that you would expect from a modern sporting rifle including the bolt release, folding stock, scope and detachable carry case.

The firearm is so well built that as you pull the trigger, the bolt slides backward and then forward, creating a recoil sensation. Yes, it’s fun.

Crosman DPMS SBR Test Rate of Fire

There’s a product called a “rate of fire” that flings a full 25-round magazine of bullets at the rate of 1,400 rounds per minute. I used my shot timer to time how long it took to empty a full 25-round magazine.

A shot timer is a device that counts the time until the next shot when a player fires his weapon. It’s typically used on a firing range or on a gun club.

It takes just a little more than a quarter of a second for the brain to receive and process the beeping signal from the alarm, formulate instructions to the muscles in the trigger finger, and deliver the command to move the muscle.

To measure the rate of fire, I timed how long it took to shoot the first bullet. The result was an average of.2 seconds. Then, I subtracted that value from the beep to the first shot to get the actual rate of fire.

After those adjustments, here’s how the “full magazine dump” times worked out. You hang onto your shorts, because you’re about to see some math. It’s just math!

The AK-47 fires 1,500 rounds per minute and the AR-15 fires 300 rounds per minute. When compared to these guns, the M1911 fires a whopping 3.7 rounds per second.

Thomson submachine gun: 700 rounds per minute M16: 700 to 950 rounds per minute Kriss vector: 1,200 rounds per minute The factory rated of 1,400 rounds per minute is certainly possible based on my observations.

I recorded a series of 25 consecutive shots from the DPMS SBR BB Rifle and the numbers that I got are a bit inexact because the rate of fire of the DPMS SBR exceeds the capabilities of my shot timer.

The Crosman DPMS SBR BB rifle is a really fun to shoot. It has no jams or stoppages, so far, but if you do ever experience one, you can simply separate upper and lower receivers to get quick access to the chamber and barrel.

This is a surprisingly affordable rifle. With a bit of shopping, you should be able to knock up to fifty dollars off of the suggested retail price. Go get one.

Crosman DPMS SBR Specs

Max Velocity430 fps
Overall Length30.4″
Weight6.5 lbs
ScopeableWeaver mounts
Suggested forPlinking/Fun
Caliber.177 (4.5mm)
Shot Capacity30
BarrelSmooth bore
Front SightFlip-up
Rear SightAdjustable for windage
Body TypeRifle
Fixed/adj. powerFixed
UpgradesDPMS Ready To Shoot Package

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