Strike Industries Viper Modular Fixed Stock FDE

The Strike Industries Modular Fixed Stock (Viper) is a polymer buttstock designed for AR-15 platforms. It combines the ergonomics and solid fit of a fixed stock with modular features and an adjustable length of pull using the included shim set. The stock is designed for carbine-length receiver extensions and is compatible with mil-spec carbine or Advanced Receiver Extension 7-position buffer tubes. Finished in Flat Dark Earth and weighing 12.8 oz, it is a compact, low-profile option for range and field use.

Key Specifications

• The product type is a Buttstock.
• The material is Polymer.
• The finish is Flat Dark Earth.
• The length of pull is 12″–14.25″.
• The weight is 12.8 oz.
• A receiver extension tube is not included.
• Firearm compatibility is AR Platform (AR-15).
• Adjustment uses the included shim set to change length of pull.
• Features a Snap Hook attachment and sling loop for carry options.
• Designed to fit a carbine-length receiver extension and mil-spec or Advanced Receiver Extension 7-position buffer tubes.

Durable, lightweight, and straightforward to set up, the SI Viper Modular Fixed Stock provides a stable shoulder interface with modular features that suit range, competition, and general AR-15 ownership. Its adjustable length of pull and low-profile design make it a practical upgrade for users seeking reliable ergonomics without added complexity.