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The VST (Vltor Sight Tower)
[More Info [Ordering]  [VST Quick Facts]  [Installation Guide]

The VST folding front sight and gas block is an all-steel, flip-up design, with a spring loaded dual-plunger detent. There is no lock. If hit, the sight will fold down, rather than damage a locking mechanism. It incorporates a QD sling swivel cup mount, and uses an AK front sight post.

Despite the VST-1's solid construction, it only weighs about a half of an ounce more than a standard A2 front sight tower. The VST-1 is currently available in cross-bolt clamp design (VST-1C) and a taper pin retained version is currently being tested.


Background and Additional Information:

One of the newest products from Vltor is really not that new. Vltor front man, Eric Kincel designed this gas block at the request of a small military unit back in 1995, when he was with the now defunct Unitech (the gun division of knife makers Microtech). Unitech and Knights Armament Corp were embroiled in legal matters at that time, and eventually KAC acquired all the designs and tooling to make the sight... which eventually evolved into the current KAC product. A quick look at other front sight blocks on the market shows that other manufacturers have been inspired by the Unitech design. Due to ongoing request over the last 10 years, Eric has revived his Unitech design, and updated it for Vltor.

This photo shows the original Unitech sight (top), and the new Vltor one.

The VST-1 is precision machined from tool grade steel with a stainless steel sling swivel insert; the VST-1 is rock solid. The clamping system has been carefully designed to provide an unparalleled hold; during testing, the VST-1 withstood over 100 ft/lbs of rotational torque! 

  - Video of Torque Test - Click Here -

The VST-1 is designed so that the clamp cross-bolts can be staked to prevent loosening.


Ordering Info:Installation and legal note: The installation of the VST should be performed by a qualified gunsmith and/or certified armorer.

Each kit contains the front sight assembly and sight adjustment tool.

Model Item Number Retail
Clamp on model
w/sling swivel socket.
VST-1C $225.00

 

For direct orders contact Vltor Sales



VIS Quick Facts 

VST at a glance

 

Design

Folding front sight and gas block assembly.

Construction

Sight base and tower constructed from tool grade steel with a stainless steel sling swivel socket.

Compatibility

Fits standard front sight and gas block section (0.750 inch) of AR15/M16 type rifles and carbines.

Weight (nominal)

 

VST-1C - 5.4 ounces

Height

Sight post up - Replicates standard "F" base height, with extra elevation adjustment for longer sight radius installations.

Sight post down - Top of base rail is the same height as the flat-top rail.

Sight tower detents

Positive spring detents hold sight tower in down and deployed position, no mechanical secondary locks.

Color/Finish

Black mag-phosphate.

 

Special Features

VST-1C - Clamp on design with out bayonet lug. Base is cut to allow for staking of cross bolts. Uses standard AK front sight pin, comes with sight adjustment tool.


Installation and User Instructions.

Download for VST-1C

 



 

 


 


Modular Firearm Buttstock - Patent 6925744.
Other Vltor patents are pending

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