Type: Rifle
Manufacturer: Barra
Model: 400e Gen 2
Materials: CNC Aluminum Receiver & Handguard / Polymer Furniture
Weight: 6.98 lbs
Capacity: 100 rounds
Caliber: .177 (4.5mm) Steel BBs
Power Source: 11.1V LiPo Battery (included)
Action: Select Fire (Safe / Semi / Full-Auto)
Rate of Fire: ~550 RPM
Max Velocity: Up to 440 FPS
Muzzle Energy: ~2 FPE
Barrel Style: Smoothbore
Barrel Length: 18.25 inches
Overall Length: 32 inches
Stock: 6-Position Adjustable Synthetic
Grip: AR-Style Textured Pistol Grip
Sights: Removable Flip-Up Front Post / Rear Peep (Windage Adjustable)
Optic Mount: Full Picatinny Top Rail
Foregrip: M-LOK Slots (sides & bottom)
Safety: Manual
Loudness: 3 - Medium
Extras: Battery, Balanced Charger, Speedloader Included

The Barra 400e Gen 2 Electric BB Rifle is the first production full-auto AEG BB gun, delivering over 1,000 shots per charge without the cost or hassle of CO2. Built with a CNC-machined aluminum receiver and handguard, this rifle combines durability with modern AR-style ergonomics. It fires at up to 440 FPS with a blazing rate of ~550 RPM, fed from a 100-round magazine. A 6-position adjustable stock, AR-style grip, and ambidextrous controls make it comfortable for extended plinking sessions. Accessory-ready with a Pic rail and M-LOK slots, this platform is built to customize and perform.

Pros:

• First full-auto electric BB rifle on the market—no CO2 required.
• Over 1,000 shots per charge with consistent power.
• Solid CNC aluminum receiver and handguard for durability.
• 100-round mag and ~550 RPM for sustained fun.
• Fully customizable with Picatinny rail, M-LOK, and flip-up sights.

Cons:

• Heavier build compared to polymer-only designs (6.98 lbs).
• Requires recharging between sessions.
• Not intended for precision target shooting.
• Loudness level is medium, not backyard-quiet.