Kwa Originals Iris - 4

Design & Ergonomics

• Part of KWA's KO Originals line, the IRIS-4 features a lightweight high-density polymer receiver and handguard, saving nearly 1 lb compared to metal counterparts

• Compact PDW form-factor with a side-folding, adjustable stock - length varies from ~560 mm to 680 mm depending on stock position.

• Equipped with K.O.R.E. 4″ M-LOK handguard, PTS flip-up sights, and a full-length top rail - ready for optics, grips, and accessories.

• Ambidextrous oversized controls (selector, mag catch, bolt catch) and a side-mounted charging handle (left- or right-handed) offer ergonomic versatility

Internals & Performance

• Powered by the AEG 2.5+ gearbox with adjustable FPS (330-380 FPS at 0.20 g BBs), compatible with drop-in electronic triggers/MOSFETs.

• Includes a long-type high-torque motor, delivering fast cyclic rate (≈21+ RPS with 11.1 V LiPo).

• Features a rotary hop-up with ~160 mm inner barrel for enhanced accuracy and consistency

Specs Summary

• Feature
  Specification
• Length
  560-680 mm (stock collapsed-extended)
• Weight
  ~2.38 kg (5.2 lb)
• Inner Barrel
  ~160 mm
• Magazine
  80-round mid-cap (uses Tekken/TK45 mags)
• Gearbox & FPS
  V2.5+ adjustable, 330-380 FPS
• Rate of Fire
  ≈21+ RPS @ 11.1 V
• Battery
  11.1 V LiPo (T-Plug/Deans, not included)
• Hop-Up
  One-piece rotary, adjustable
• Fire Modes
  Semi-auto, Full-auto, Safe

Ideal Use & Feedback

• Designed for CQB/tactical players and speed-oriented builds - lightweight, compact, and performance-driven.

• Reddit & reviews note the strong out-of-the-box ergonomics, lightweight feel, and impressive range and trigger response

Final Verdict:
The KWA IRIS-4 AEG2.5+ blends advanced internals, lightweight construction, and compact design into a nimble PDW platform - perfect for CQB and mobile playstyles. Its adjustment features and KO-series innovation make it a compelling pick for both casual and competitive airsofters.