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$449.99
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Shipped & sold by Pyramyd AIR
1-year limited warranty
60 day money back guarantee
Description
The Barra 400e Gen 2 Full Auto BB Rifle is a first in the market. It is a select-fire BB gun that receives all of its power from a Lithium Polymer (LiPo) battery. It reaches velocities up to 440 FPS and a cyclic rate of approximately 550 rounds per minute (RPM) to deliver intense action and limitless enjoyment for plinking and fun target practice.
The heart of this BB gun is the Lithium Polymer battery that provides consistent power and operation compared to the CO2 cartridges found in competing airguns, meaning it performs well over long shooting sessions and in a variety of temperatures. With the ambidextrous select-fire switch, this BB gun easily shifts from semi-auto to full-auto (and safe mode), allowing shooters to either get semi-auto shots for careful placement, or to empty the 100-round magazine in just over five seconds with exciting full-auto shots.
The Barra 400e Gen 2 Full Auto includes flip up front and rear sights that can be removed and repositioned. In addition, the rear peep sight is adjustable for windage, and the BB gun has a long Picatinny optics rail for adding a scope. To provide further options, the CNC-machined aluminum handguard has M-LOK slots on the bottom and both sides for accessories such as bipods, flashlights, and lasers.
This BB gun has an AR-style textured pistol grip and a custom 6-position adjustable butt stock for variable length of pull. For convenience, the butt stock includes a quick-disconnect sling mount, and the package comes with both a balanced battery charger and a speed loader to make filling the magazine simple.
To get a truly unique and exhilarating AEG BB gun shooting experience, buy the Barra 400e Gen 2 Full Auto BB Rifle from Pyramyd AIR today.
Barra 400e Gen 2 Full Auto BB Rifle
- Automatic electric gun (AEG)
- Full-auto/semi-auto
- Uses .177 caliber steel BBs
- CNC-machined aluminum handguard and receiver
- 100-round magazine
- Over 1000 shots per charge
- Approximately 550 rounds per minute
- Max. velocity: 440 FPS
- Textured AR-style pistol grip
- Manual safety
- Picatinny optics rail
- Flip up front post sight
- Flip up windage-adjustable rear peep sight
- Custom 6-position adjustable stock
- M-LOK accessory slots on sides and bottom of handguard
- Quick-disconnect sling mount
- Combo Includes battery, balanced charger, and speed loader
- Barrel length: 18.25"
- Overall length: 32"
- Weight: 6.98 lbs.
Specifications
Ballistic & Conversion Calcs
Overall Rating
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10 of 325 Barra 400E Gen 2 Reviews

Found this online and instantly fell in love with the idea of electric vs co2. After a short research and debate with myself I "pulled the trigger" on the 400E. Can't believe how much fun this thing is! So far I have fired in the range of 2000 bbs through this without a single misfire! Showed some others this rifle and they too are impressed, between the look and feel of that of an AR chassis weapon. Great tool to take my daughter out and teach her the basics all day and hardly costs anything by comparison of 22's and such. Full auto is a great way to finish a day shooting and go out with a smile with whatever target getting destroyed. Very accurate with factory sights, although they had to be moved slightly closer together as they kept hitting low. Looking into some decent optics as my next upgrade. Biggest downsides so far are getting used to the battery maintenance (more information on this would have been helpful in the owners manual) and the lack of side or lower picatinny rails for accessories. The speed loader is nice...hangs up on occasion, but a few taps seem to get it going again. Improvement wise...I would love to see a larger capacity magazine / drum mag to those fun times that you just want to go full auto and have a blast!

Like shooting it but sometimes it jams on auto but it's nice gunš

So much fun! Yhis thing is so much fun. Nvever have to leave the back yard to go enjoy some shooting. 100 shots per magazine is awesome as well

I bought this gun a few weeks back and it has been a blast to play with! Love the 100 round magazine, allows for plenty of shots before having to change out. The loader can be a bit challenging, but once you get it down its easy to load up the mags. I have been using the Barra bbs, and have had no jams so far. Its a great gun and love the ease of use and all the fun that can be had once the targets are all set up. Me and the grandson have spent hours outside putting this to the test and he would give it 10 stars it they were an option!

My new rifle shoots flawlessly. This thing is a lot of fun. I read of some jamming issues with inferior BBs so I bought the Barra BBs and I havenāt had any jams. Once I sighted it in it shoots very accurately for a BB rifle. I like the sights it comes with and may try a red dot just for fun. My wife even got a kick out of plinking cans with me the other day.

I absolutely love this BB gun! I have owned a lot of BB guns in my 50 years and this one is the best by far! The ability to shoot 1000 BBs with out having to pump or break a barrel and feed one pellet at a time is a game changer! Consistent power with every shot and fully automatic too! I take this gun with me when I shoot my real guns and this is the first BB gun thatās fun to shoot while real guns are being shot. I highly recommend this gun, Iāve decked mine out with a laser and flashlight combo, a 3X illuminated scope and a 45° canted flip up green dot. This gun is a BLAST!!!!!

Build appears high quality and durable. No issues after running a few thousand shots through it. Lots of fun and reasonably accurate even in full auto. Worth the price of admission!

Great BB gun and so easy to work on. Only con is the barrel is fragile with the mock silencer protruding out. Would rather have a longer rail guard for use. It was leaning up and my son tapped it and the threads broke off clean with the silencer and barrel. Had to order a new barrel and a barrel cover. Love everything else

I bought this gun for my kids Christmas, but it keeps on jamming after just a few shots. I have the correct ammunition and Iāve reached out to the help email and phone line and no oneās returning my call. I even cleaned out the barrel and the magazine, etc. still no luck. It would be nice if somebody would email or call me back.
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Apr 19, 2025
By Gkent
I've had this rifle for a year and put a 1000 or so steel bb's through it. It's a gorgeous recreation of my old M16 and weighs just about the same... Regardless of fresh charging, I can't consistently hit my targets. My problem, right? Not really. I've been shooting recreationally for 50 years, and 28 of those years were professionally on the job. Not only is this rifle too heavy, 400fps is a HUGE stretch. Like some of the cheaper spring driven rifles, the BBs are pushed up to 5" off even from a prone supported firing position. And it's too loud.