Knight's Armament Airsoft 13" URX 4 Rail System (Black)
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MadBull Airsoft, working alongside with Zshot Airsoft, is proud to present to you the KAA (Knight's Armament Airsoft) URX4 forend Handgaurd. The URX4 rail is a unique accessory because of its integrated barrel nut and replica gas block tube, which are both simulation to real forms. Officially licensed by Knight's Armament, it adds a variety of keymod accessories options as well as component placement for different angles. The Airsoft version is made out of anodized aluminum for a more serious feel and appearance.
Specifications:
Manufacturer: Z-Shot
Model: URX 4 Rail
Material: Aircraft Aluminum
Package Includes: One (1) URX 4 Rail System, One (1) Set of Mounting Hardware
Features:
- CNC Aircraft Aluminum Construction
- Integrated Barrel Nut
- Smooth Textured Finish
- KeyMod Slots at 45 and 90 Degrees
- Fully Licensed KAC Trademarks
- Specifications
- Manufacturer: Knight's Armament
- Color: Black
- Size: 13"
- Material: Aircraft- Grade Aluminum
- Package Includes: One (1) Rail System
Just purchased this with high expectations, but got a major let down. The real steel URX4 is one piece solid construction. The barrel nut and rail is one piece, youd use barrel shims to position the top rail to the 12oclock position. This madbull version is a separate barrel nut and this whole rail segment slides over the barrel nut. The QD sling nuts act as a set screw to keep the rail from sliding forward, but doesn't keep the rail from wobbling. BAD DESIGN MADBULL!
There's only 2 solutions for the rail wobble;
#1 If you do not plan on using your faux gas tube, the kit comes with an aluminum block that wedges the the gas tube channel between the barrel nut and rail.
#2 Madbull RAS fix / riser.
Pros:
Real steel KAC trade marks
Looks totally awesome
Cons:
Wobble!
Wobble!
The rail wobbles!
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