WE Tech H-Capa 5.1 K-Version Full Auto GBB Pistol in Black

WE Tech H-Capa 5.1 K-Version Full Auto GBB Pistol in Black

If you're after a gas blowback airsoft pistol that merges aggressive styling, modern features, and full-auto firepower, the WE Tech H-Capa 5.1 K-Version Full Auto is an absolute standout. Based on the ever-popular Hi-Capa 5.1 platform, this pistol delivers the kind of performance and flair that makes it just as much at home in the hands of a beginner as it is with a skirmish veteran.

The first thing you'll notice is the hefty full metal construction. From the chassis to the slide, everything has a weighty, reassuring feel that mimics the real steel 1911 DNA it’s based on. The ported slide is more than just eye candy—it’s a functional enhancement. Those venting holes up front shave weight off the slide, letting it cycle quicker and sharper during rapid fire. Perfect for that snappy blowback response, especially when you're sending rounds downrange in full-auto mode.

Peering through the ports, you'll catch a glimpse of the chrome barrel—a nice visual touch that contrasts cleanly with the matte black body. Aesthetics aside, the chrome barrel does its job, helping rounds fly straight and true. Iron sights mounted along the slide are simple but effective, offering a clear sight picture for fast target acquisition.

The slide serrations at the rear aren’t just for show either. They give you solid grip and control when you’re racking the slide, whether you're reloading or clearing a jam mid-game. Underneath the barrel, you'll find a short accessory rail—ideal for mounting a compact torch or laser if you're running low-light ops.

Controls are crisp and familiar. The ambidextrous safety, beavertail grip safety, slide release, and magazine release are all made from metal and feel durable under pressure. It’s these little things that contribute to the pistol's overall reliability and confidence-inspiring handling. And for those looking to run a suppressor or tracer unit, the threaded outer barrel has you covered right out of the box.

The grip is classic Hi-Capa: chunky, textured, and incredibly comfortable. Made from high-strength polymer, it ensures a firm hold even with gloves or sweaty palms. Combined with the pistol's weight (around 1200g), it feels balanced and responsive in the hand—ready to react the moment you do.

Internally, the adjustable hop-up system means you can fine-tune your BB trajectory depending on the weight you're using—0.20g to 0.25g recommended for best results. The blowback action is crisp, thanks to the efficient gas system, and the 30-round magazine feeds smoothly shot after shot.

And yes, this GBB pistol can go full-auto. Just flip the fire selector and unleash a stream of BBs that'll keep your opponents ducking for cover. If you prefer a bit more control, there's also a semi-auto only version available. Either way, the WE H-Capa 5.1 K-Version is a serious tool with serious style.

Highlights

• Full metal construction for authentic weight and durability 
• Ported slide with visible chrome barrel for reduced weight and faster cycling
• Full-auto and semi-auto firing modes
• Threaded outer barrel for suppressors or tracer units
• Adjustable hop-up for range tuning
• Underside rail for accessories
• Textured polymer grip for secure handling
• Gas blowback with crisp recoil feel

What's Included

• WE Tech H-Capa 5.1 K-Version (Fully Auto) 
• Magazine
• User Manual

Technical Specifications

• Overall Length: 220mm
• Weight: 1200g
• Magazine Capacity: 30 rounds
• Power Source: Gas
• FPS: Approx 300FPS (using 0.20g BBs)
• Action: Semi & Full Auto
• Barrel: Smooth bore
• Sights: Blade and ramp front, adjustable rear
• Hop-Up: Adjustable
• Material: Full metal with polymer grip