Features include:

• Ergonomic cheek weld for improved firing position
• Two waterproof compartments for storing 6 batteries (DL-123 or equivalent sized)
• Twist-off padded rubber buttplate
• Multiple sling attachment points
• Multi-position adjustable/retractable (depending on buffer tube).
• Does not fit standard HK416 buffer tube.
• NOTE: This product is only to be sold within the United States