Est. 2014 | USA Small Business
Unity FAST Thermal Riser | 2.05" Height for Heads-Up Shooting
FREE Delivery & Lifetime Warranty
☑️ Ships for FREE from Texas*
Ships today or next day on most orders that are "In Stock". Some orders that are custom or large may take extra time to prepare.
- Free shipping is 3-10 days and requires a purchase of $70 or more, or choose a faster method at checkout. Be sure to account for the 0-2 days it will take us to pack and ship an order, in addition to the shipping speed you choose.
- All orders ship as soon as possible. We don't like waiting and you probably don't either.
- If there are delays: (Only if delays are in green, above, do we expect them), just know that we are on your side. If you're waiting, we're waiting for you, plus hundreds and sometimes thousands of others to finish being made.
- Shipping times are estimations. Items that are custom, delayed, rejected, or affected by other acts of god will take additional time.
☑️ Why shop with Atomic Defense?
- Highly-rated 4.8/5 star service with 1600+ reviews, and counting!
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- USA Family-Owned Small Business.
- BBB A+ Rated and Accredited.
- Open Monday to Friday. 9:00 AM to 4:00 PM Pacific.
- Lifetime Warranty.
- Free Shipping on orders over $70 inside the USA.
- Easy Returns and Exchanges.
- Our support doesn't end after the sale. We're here whenever you need us.
Need 10+ of these? Request a quote here:
Fill out the form for 10+ units by clicking here. (Total order must be $5,000 USD or more in value.)
CAGE: 9FAL3
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Address: 2491 Alluvial Ave. Clovis, CA 93611
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Return & Exchange policy:
- Summary: Don't take those sweet Instagram pics and then try to return a used item. Must be within 30 days of delivery.
- Exchanges: Realized you need a different item? That's ok! Exchanges and returns are incredibly easy.
- We are a Small Business: We do the most we can to help with return costs, but we are not Amazon and cannot take hits or losses like Amazon.
- Wrong Items: Mistakes rarely happen. Atomic Defense takes pictures of orders before they are packaged and shipped. We pay for return, recertification, and exchange shipping costs if we ever make a mistake on your orders.
- Rules for Returns: We will deduct refurbishing costs, plus materials and labor, of used products or modified products - or decline the return. This includes, but is not limited to; products with residue, smells, scratches, missing parts, debris, dents and damage. **We reserve the right to refuse returns. Refused returns shipping cost back to the buyer are not covered by Atomic Defense.
- Packaging: Ensure returns are packaged safely with thick padding on all six sides. Failure to correctly package returns may damage products and cost will be deducted from Buyer's account or return refused.
- Bulletproof products: No one else accepts returns on ballistic items. We do.** However, recertification X-Ray costs on returned ballistic items is 20%.
- Starting a return/exchange: Click here
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FAST Thermal Riser; Achieve a quicker, more natural target view.
- The Unity FAST Thermal Riser raises your thermal optic to a modern, 2.05-inch heads-up view. This design helps you aim faster and more comfortably without putting you in a cramped or uncomfortable shooting position..
- 2.05" Heads-Up Posture: Lifts your thermal to the correct height for a more natural shooting position. This helps you keep your head up to see more of your surroundings and get on target faster.
- Lightweight and Strong: This product is made from tough 7075-T6 aluminum and has a durable Type III hardcoat anodized finish. It can handle tough conditions but weighs less than 2.5 ounces..
- Compact & Secure Mounting: Attaches firmly to any M1913 rail using a two-cross-bolt clamp that takes up only three rail slots. This provides a rock-solid foundation for your optic without adding unnecessary bulk to your rifle.
Unity Thermal Riser Features & Specifications
The FAST™ Thermal Riser solves a critical problem for modern shooters: aligning thermal optics for a natural, heads-up shooting posture. By raising your thermal to a 2.05" optical centerline, this riser allows you to get on target faster and maintain better situational awareness without craning your neck, especially when using helmets or protective masks. It is specifically built to either integrate with a thermal mounted on a UNITY™ CTM™ or to elevate a standard 1.54” clip-on mount, making it an essential piece of gear for achieving a faster, more comfortable, and seamlessly integrated setup.
Key Features
- 2.05" Optical Centerline: Raises your thermal optic to a modern, heads-up height for faster sight acquisition and improved comfort.
- Dual-Role Compatibility: Works with thermals mounted on a UNITY™ CTM™ or elevates standard 1.54” OEM clip-on mounts to the 2.05" height.
- Secure Rail Clamp: Attaches to a standard M1913 rail with a 2-cross bolt clamp for a secure, stable platform.
- Durable Construction: Made from 7075-T6 Aluminum with a Type III Hardcoat Anodized finish to withstand hard use in the field.
- Compact Footprint: Its efficient design occupies only three slots on your rail, saving valuable space.
Specifications
- Height Over Rail: 0.51 in / 13 mm
- Material: 7075-T6 Aluminum
- Coating: Type III Hardcoat Anodized
- Weight: <2.5 oz / <70.9 g
- Dimensions (W x L x H): <1.4 in x 3.6 in x 0.6 in
- Rail Mount Type: 2 Cross Bolt Rail Clamp for M1913 Rails

What's in the box of the Unity Tactical FAST Thermal Riser?
- (1) FAST™ Thermal Riser
- (2) Clamp Screws
- (2) Washers
- (1) Rail Clamp

FAST Thermal Riser FAQs
What is the main purpose of the FAST™ Thermal Riser?
The FAST™ Thermal Riser raises a thermal optic to a 2.05" optical centerline. This height creates a more natural, "heads-up" shooting posture, which helps you aim faster and stay more aware of your surroundings, especially when wearing a helmet or other gear.
What optics is this riser compatible with?
This riser is designed for two primary uses:
- To elevate a thermal optic that is mounted on a UNITY™ CTM™.
- To raise a thermal optic that uses a standard OEM 1.54" clip-on style mount to the 2.05" height.
What type of rail does the FAST™ Thermal Riser fit?
It is designed to be placed on a standard M1913 rail (often called a Picatinny rail).
How do I install the riser and how tight should the screws be?
You will need a T25 bit driver to secure the screws. The screws should be torqued to 35 in-lbs (4 Nm). It is important to lightly snug all screws before applying the final torque to any single one.
What is the riser made of?
It is made from high-strength 7075-T6 Aluminum and finished with a durable Type III Hardcoat Anodized coating.
Where is the best place to purchase a genuine FAST™ Thermal Riser?
To ensure you receive a genuine Unity Tactical product, you should always buy from an authorized distributor like Atomic Defense. This guarantees you receive an authentic, high-quality item and have access to reliable customer support for any questions.
- We are a Small Business: We do the most we can to help with return costs, but we are not Amazon and cannot take hits or losses like Amazon.
- Lifetime Warranty: Atomic Defense will always stand behind our products. Our lifetime warranty covers any defects and ensures that you never need to worry about parts or the quality of your orders for the entire life of the product.
- Wrong Items: Atomic Defense takes pictures of orders before they are packaged and shipped. We pay for return, recertification and exchange shipping costs if we ever make a mistake on your orders.
- Rules for Returns: We may deduct refurbishing costs, plus materials and labor, of used products or modified products. This includes, but is not limited to; products with residue, smells, scratches, missing parts, debris, dents and damage. **We reserve the right to refuse returns.
- Packaging: Ensure returns are packaged safely with thick padding on all six sides. Failure to correctly package returns may damage products and will be deducted from Buyer's account.
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Start a Return or Exchange
Visit our return portal to begin the self-serve return/exchange process.
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General Products:
- Must be within 30 days of package delivery.
- No need to purchase a shipping label! Atomic Defense will give you a pre-paid one.
Ballistic and Bulletproof Products:
- Most companies will not accept any returns on ballistic or bulletproof items. We offer recertification as a courtesy.
- Must be within 30 days of package delivery.
- No need to purchase a shipping label! Atomic Defense will give you a pre-paid one.
- A re-certification cost of 20% applies to returns of ballistic and bulletproof products.
- The 20% recertification covers the cost of ensuring the armor is safe. Usually starting with X-Raying the armor for cracks underneath the coating, inspection for damage, and water damage testing. Without this 20%, we would not be able to offer returns on armor.
- There is no way for us to know how or if it was used once shipped, and we have to consider them unsafe until retested, inspected and certified.
- Exchanges and non-ballistic products do not have a re-certification cost.