The Barra 400e Gen2 Polymer is the latest version of the original Gold Award-winning model tested by Hard Air Magazine. In fact, Barra says that it’s cheaper and – even – better!
In our review of the “Gen One” 400e, we rated this as the most accurate BB gun we had ever shot. It received an outstanding 96% score, too. All pretty impressive for the first AEG (Auto Electric Gun) to fire steel BBs.
At the 2025 SHOT Show, Barra Airguns launched the Gen 2 version of the 400e. It’s available now and – unusually – is available in two versions. One uses the same metal structure as the original model. The other uses polymer moldings.
There’s a significant price difference between the two versions – and by significant we mean around $140! So this gives the new Barra 400e Gen2 Polymer a Street Price of just $300. But – for anyone wanting the metal version – it’s available too.
Compared to the original 400e, Barra has made a large number of changes, while not deviating from the original winning concept.
Apart from the price reduction due to the synthetic structure, there’s another “hidden” price reduction. That’s because the Gen 2 models include the required LiPo battery and USB charger. These were an additional cost item with the Gen 1 and had to be purchased separately. Bundling these items definitely makes sense!
Feature improvements include a new spring that increases the Muzzle Velocity by about 10 per cent.
In addition, there’s a new polymer magazine that has a 100 BB capacity instead of the 50 round original. The new mag also dispenses with the the projecting BB follower that was exposed every time the magazine was released.
Then there’s additional internal mechanical improvements that make the gun less liable to jam and easier to clear if it does. Not that we found any issues in the HAM testing…
All-in-all, the Barra 400e Gen2 Polymer (and metal version, too), is definitely a worthwhile improvement on the already-excellent original.
Plus Barra has a video explaining maintenance and jam-clearing for the Gen 2 models. It’s definitely worth watching.
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Barra 400E Polymer BB Rifle 0.177
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