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  • 6.02mm Tightbore barrel
  • Stainless steel construction
  • For most Airsoft AEGs

If your AEG needs a bit of extra accuracy to get the job done, a tightbore inner barrel will do the trick! This Stainless Steel Tightbore Inner Barrel from ZCI has a 6.02mm bore, meaning a slight rise in FPS using the same mainspring and improvements in accuracy at long range. 

These barrels are designed to fit any Tokyo Marui spec AEG and are constructed from stainless steel for maximum rigidity and to retain straightness in the long term. Ideal for an AEG DMR build or any other AEG-based build which requires accuracy and more long range performance, the ZCI Tightbore will have your AEG shooting at its very best!

  • Stainless steel construction
  • Complete screw & washer set
  • For version 2 Airsoft gearboxes

If you've misplaced or stripped a screw from your V2 gearbox shell, this replacement screw set from ZCI should get you up and running again! Constructed from stainless steel, this set includes a full set of washers and screws to replace the external screws holding the version 2 gearbox shell halves together. If you're into the technical side of Airsoft, this screw set is an ideal spare to have on hand just in case!

  • Reinforced bevel gear
  • 9-Tooth design - Thicker teeth, greater durability
  • Great for high stress builds

If you are building an AEG DMR or another AEG which requires extra torque and durability the ZCI 9-tooth bevel gear would be a perfect fit. This hardened steel bevel gear has 9 steel teeth instead of the usual 10, allowing the teeth to be considerably thicker and reducing the chances of failure in high-stress applications.

  • Easy Build & Installation
  • CNC Machined Aluminium
  • Improved Accuracy & Range

Delivers more range and improved accuracy from your Airsoft AEG. Designed primarily for M4 AEGs but may be compatible with other AEGs that use an M4 style hop unit.

Not only does the hop unit look sweet in metallic red it performs amazingly. With a highly precise and precision tuneable rotary hop wheel you can add micro hop adjustments to any weight BB. An ideal upgrade for any Airsofter and combined with the right FPS you can easily lift up to a 0.36g BB or heavier.

Once fully built this hop unit is solid, with zero side hop arm movement your shots are far more consistent in fight path on every shot. We recommend you combine this hop unit with high quality BBs for truly outstanding results! Please note there is no hop rubber or nub included!

About ZCI

Zhucheng International or ZCI Airsoft specializes in research, production and. sales of precision parts and have since moved into the Airsoft market and now offers AEG internal parts and accessories.

Their vast array of products include everything from exterior parts such as grenades, tracer bipods and much more in addition to internal parts such as springs, pistons, nozzles and much more.