HK Army HSTL Goggle Carbon Fiber Black Hi-Capa Sights The HPA BBs are the

The HPA BBs are the only biodegradable BBs whos biodegradation process has been approved by a U

and "High Velocity"The "Standard" model is tuned to output up to 350 FPS to meet indoor CQB arena rules

The outer barrel reproduces the appearance of a real steel barrel

Not recommended for Sub-Compact Series or Micro-Compact Series

HK Army HSTL Goggle Carbon Fiber Black Hi-Capa Sights The HPA BBs are theHSTL Goggle System Composed of a robust blend of thermoplastic, the design of the HSTL face mask protects critical areas of the user, while still promoting supreme breathability and freedom of movement. The HSTL Goggle System features the quick change lens retention system which allows the player to replace their lens in seconds without the use of tools. Details Snap in place removable upper and lower goggle foam insert Optically correct high