Description
ASG - Strike Systems Advanced 551 Red/Green Dot Rifle Sight (Short)
The ASG Strike Systems Advanced 551 is a compact red/green dot sight designed for versatility and rapid target acquisition. Constructed from a combination of durable metal and hard polymer, this optic is built to endure regular use on the airsoft field. It features a rear-facing keypad for convenient on/off control, colour selection between red and green reticles, and brightness adjustment to suit varying light conditions.
The 551 sight is fully adjustable for windage and elevation, allowing precise alignment to your rifle. Powered by four AG13/LR44 batteries (not included), the battery compartment is secured with a lever-lock system for quick access. The unit mounts easily to any standard 21mm Picatinny or Weaver rail using a screw-on locking system, ensuring a firm and stable fit during gameplay.
Highlights
- Compact design ideal for low-profile setups
- Red and green illuminated cross-hair reticle
- Adjustable brightness for varied lighting conditions
- Windage and elevation adjustable for precision sighting
- Rear-facing keypad for quick control
- Durable metal and polymer construction
- 21mm Picatinny/Weaver screw-on mount
- Secure lever-lock battery compartment
What's Included
- ASG Strike Systems Advanced 551 Dot Sight (Short)
- Instruction manual
- Protective packaging
Technical Specifications
- Reticle: Red/Green illuminated cross-hair
- Brightness: Adjustable levels
- Power Source: 4 x AG13/LR44 batteries (not included)
- Mount Type: 21mm Picatinny/Weaver screw-on mount
- Adjustment: Windage and elevation
- Material: Metal and high-strength polymer
- Colour: Black
Product Reviews
Delivery & Returns
Delivery Information
Affordable Shipping – Starting from Just £2.50
Our delivery prices begin at only £2.50 for UK mainland orders, with free standard delivery available on all orders over £100*. To quickly find out the exact shipping cost for your items, simply add everything to your basket. In the basket, you'll see a link under the subtotal titled "Estimate Shipping & Tax"—click this, enter your delivery details, and you’ll get a full quote including whether you qualify for free shipping.
Free Shipping Offers
- UK Mainland: Free on orders over £100*
- Northern Ireland, Republic of Ireland, Scottish Highlands & Islands, and Isle of Man: Free on orders over £100*
- Channel Islands: Unfortunately, we do not offer free shipping to this region
*Free shipping is a 5 working day service. For example, an order placed on Monday would typically arrive the following Monday.
Mainland UK Delivery Options
- Royal Mail: From £2.50 (2 working days, price based on weight)
- Economy Delivery: £4.95 flat rate (2–4 working days)
- Express Delivery: £6.95 flat rate (1–2 working days)
Working days exclude Saturdays, Sundays, and public holidays. Need your order on a Saturday? We can arrange this for £20—please contact us directly after placing your order to pay the balance.
Delivery Prices – Outside Mainland UK
- Northern Ireland: From £5.95
- Scottish Highlands & Islands: From £5.95
- Isle of Man: From £5.95
- Republic of Ireland: £6.95 flat rate (any size order)
- Channel Islands: £7.95 flat rate (any size order)
We strive to keep our delivery charges as fair and straightforward as possible, with clear options to suit all needs and budgets.
