One of the most innovative products available from Vltor is the Versatile Interface Structure (VIS) upper receiver assembly. After 12 years of concept, development and testing, the VIS integrated receiver and rail platform is now available.
The VIS is a polylithic upper receiver assembly that ties the normally individual receiver and handguard into an aggregate single part. This combination overcomes many problems that are associated with the traditional "two piece" design, most notably being greatly improved structural strength and repeatable accuracy; while affording the user the benefits of a free-floating barrel and rock solid railed fore end.
Installation and legal note: The installation and the assembly of the VIS kit should be performed by a qualified gunsmith and/or certified armorer. Each kit comes with a barrel nut installation spanner wrench.
Each kit contains the following:
- Qty. 1: Upper VIS assembly (includes dust cover door assembly, installed).
Qty. 1: Lower VIS Handguard assembly.
Qty. 1: VIS barrel nut.
Qty. 1: Shell deflector only SK or Bolt assist & Shell deflector assembly (installed) AK
Qty. 1: VIS barrel nut wrench.
Qty. 1: M203 Indexing Bracket and mounting screws
