551 Advanced- Red dot sight - 21mm

The 551 Advanced compact red dot sight from Strike Systems is well constructed of metal and hard plastic.

It has a rear-facing keypad, with on/off and controls to change the color of the reticle, red or green, as well as adjust the brightness of the reticle. Fully adjustable for windage and elevation. The four AG13/LR44 batteries are stored in an easily accessible compartment that is securely locked by a lever and allows for quick and easy battery replacement if necessary. The sight has a simple screw on locking system that allows you to mount it on all standard Picatinny/weaver rails.


Red or green reticle.

Fully adjustable for wind and altitude difference.

Adjustable brightness.

Cross-hair type reticle.

4xAG13/LR44 batteries. (not included.)

21mm screw-on mount.

* Not recommended for use with air guns

Customers purchase the products at their own risk and are responsible for complying with all local legal requirements regarding the purchase, possession, use, or transport of the goods available in the online store.

This includes, but is not limited to, ASG (AIRSOFTs), air rifles, and paintball replicas, which may be subject to specific rules for weapons and ammunition.

Restrictions on the purchase, possession, use, or transport of these items may apply in the destination country, and the seller assumes no responsibility for this. Any fees or costs (including administrative fees, validation, tax, and customs) are the customer's responsibility.

The use of ASG (AIRSOFTs), air rifles, and paintball replicas requires proper safety measures and caution. These products are not intended for individuals under 18 years of age.