WORST Gun of the Year...

Published on September 13, 2021
Duration: 16:55

The Rock Island Armory STK100 is heavily criticized for its proprietary barrel with a 1:16 twist rate causing accuracy issues, an optics mounting system lacking recoil lugs and losing iron sights, and an out-of-spec accessory rail. Despite a smooth 4.5lb trigger and soft shooting, these execution flaws lead to it being labeled the 'worst gun of the year'.

Quick Summary

The Rock Island Armory STK100 is criticized for its proprietary 1:16 twist barrel causing accuracy issues, a flawed optics mount that eliminates iron sights, and an out-of-spec accessory rail. These execution problems, despite a decent trigger, lead to it being called the 'worst gun of the year'.

Chapters

  1. 00:00Introduction: Rock Island STK100 Unboxing
  2. 00:47Design Flaws: Aluminum Frame & Disassembly
  3. 01:35Poor Ergonomics & Grip Texture
  4. 02:29Trigger Performance: 4.5lb Pull
  5. 04:18Accuracy Nightmare: Bullet Tumbling & 1:16 Twist
  6. 05:12Proprietary Barrel: Not Glock Compatible
  7. 06:28Bad Optics Mount: No Iron Sights
  8. 08:27Out-of-Spec Rail & Holster Issues
  9. 13:50Final Verdict: Worst Gun of the Year?

Frequently Asked Questions

What are the main criticisms of the Rock Island Armory STK100?

Key criticisms include a proprietary barrel with a 1:16 twist rate causing accuracy problems, an optics mounting system that sacrifices iron sights and lacks recoil lugs, and an out-of-spec accessory rail that affects light and holster fitment. The two-piece aluminum frame design and inconvenient disassembly are also noted.

Why is the STK100's accuracy considered poor?

The STK100's accuracy is significantly hampered by its 1:16 barrel twist rate, which is too slow to properly stabilize 9mm projectiles, leading to bullets tumbling and hitting targets sideways even at short ranges. The proprietary barrel design also prevents easy replacement with a standard Glock barrel.

What issues does the STK100 have with optics and accessories?

The optics mount only fits the Vortex footprint, lacks recoil lugs, and integrates the rear sight, meaning you lose your iron sights when mounting a red dot. The accessory rail is out of spec, preventing flush fitment of common lights like Surefire and Streamlight, which can impact holster compatibility.

Is the Rock Island STK100 compatible with Glock parts?

While the STK100 frame accepts standard Glock 17 slides, its barrel is not interchangeable with standard Glock barrels due to proprietary lug geometry. Some aftermarket Glock triggers may fit, but overall compatibility is limited, especially for critical components like the barrel.

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