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Shipping Policy

Free shipping on orders over $199!

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Offset Folding Backup Sights Kit for M4 / AR15, Left & Right Hand, FRBS – FAB Defense

FAB Defense FRBS Offset Folding Backup Sights Kit compatible with 1913 MIL-STD Picatinny rails for reliable performance.

SKU:

fx-frbsos

Price range: $84.50 through $91.50

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Description

Equip your firearm with the reliable FAB Defense FRBS Offset Folding Backup Sights Kit. Designed for shooters who need a compact and effective backup sighting solution, these offset sights work perfectly in CQB (Close Quarters Battle) scenarios. The Offset Folding Backup Sights allow you to transition seamlessly from magnified optics to a secondary sighting option, keeping you prepared for any situation. With their durable construction and user-friendly design, these sights deliver both performance and convenience.

FAB Defense builds the FRBS Offset Sights with a lightweight yet robust structure, combining fiberglass-reinforced polymer with metal components. This design ensures durability while keeping your firearm lightweight. You can mount them directly onto a 1913 MIL-STD Picatinny rail, and they come in both right and left-side variations to maximize versatility.

You don’t need any tools for adjustments, making it quick and easy to fine-tune these sights. The rear sight (RBS) lets you adjust windage manually, while the front sight (FBS) allows for manual elevation adjustments. Their sleek, low-profile design minimizes protrusions and reduces the risk of snagging.

Upgrade your firearm with the FAB Defense FRBS Offset Folding Backup Sights Kit and enjoy superior reliability and performance.

 

Offset Folding Backup Sights – Features:

  • Designed as a backup sight for use with magnified optics in CQB scenarios.
  • Sleek, low-profile design with minimal protruding parts.
  • Tool-free elevation and windage adjustments for quick tuning.
  • Rear sight (RBS) manually adjusts for windage.
  • Front sight (FBS) manually adjusts for elevation.
  • Available in right and left-side versions for user preference.
  • Made from durable fiberglass-reinforced polymer and metal.
  • Compatible with 1913 MIL-STD Picatinny rails.

 

Compatibility

  • 1913 MIL-STD Picatinny rail.

To view the full FAB Defense catalog, click here.

Additional Information

Weight 0.55 kg

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Shipping & Returns

Domestic Shipping – For orders shipping within the USA*
Shipping Option Cost Delivery Time
Free Shipping – Regular Registered Shipping – 
*Please note there is no option of adding Insurance protection to this form of shipping
FREE For orders above 199$
12.95$ For orders below  199$
8-16 Business Days
Priority Shipping  14.95$ for orders Above 199$
17.95$ For orders under 199$
4-12 Business days
Express Shipping (UPS) Cost will depend on the destination of the package (calculated shipping cost can be seen at checkout) 3-6 Business days

* For qualified orders. If an item is not available in our US warehouse it will be shipped from Israel (in this case the delivery times may be slightly longer).

International Shipping – For orders shipping outside USA
Free Shipping – Regular Registered Shipping –
*Please note there is no option of adding Insurance protection to this form of shipping
FREE For orders above 199$
12.95$ For orders below  199$
14-35 Business days
Priority (Eco Post)  14.95$ for orders Above 199$
17.95$ For orders under 199$
8-18 Business days
Express Shipping  Cost will depend on the destination of the package (calculated shipping cost can be seen at checkout) 3-8 Business days
*International TDI shipments – Orders shipping outside of the US will be shipped via USPS / UPS for a fee of 25$ (shipping cost can be seen at checkout).

Returns & Exchanges

All return claims must be made not more than 7 days after the item has been received.
Returns must be sent back within 30 days after delivery.

Exchanges are subject to product availability and may be subject to additional shipping fees.

To be eligible for a return or exchange, the item must be in its original condition, unused, and with all original tags and packaging.

Click here for the full Shipping Policy

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    You may return your item within 30 days from the day it was delivered to you in order to receive a refund.
    Please notify us of your intent to return the item within 7 days of receiving it.
    The item must be in its original condition and packaging.
    Shipping costs are non-refundable.
    For full return details, click here to view our complete return policy.

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