Unity Tactical FAST Optic Riser
FAST™ is a series of optic mounts and platforms that provide end users with a quicker sight picture than standard height mounts.
A 2.26” optical centerline height provides faster/easier reticle acquisition while wearing electronic earpro/communications headsets, night vision goggles and gas masks and allows for more rapid visual processing of the battlefield by promoting a heads-up posture. A heads-up posture also helps users maintain a neutral spine position which is more comfortable while wearing helmets, plate carriers, and other heavy gear.
FAST™ Riser securely elevates block-type red dot optics with a standard lower 1/3 cowitness picatinny mount to a 2.26″ optical center line. FAST™ Riser provides an elevated M1913 Picatinny platform for direct attachment of optics such as EOTech EXPS®, Leupold LCO®, Vortex UH-1®, and other “lower 1/3” optics*.
*Technically, the FAST™ Riser will support “absolute cowitness” optics such as EOTech XPS®, Sig Sauer Romeo8H®, etc. But, compatibility with the FAST™ FTC Magnifier Mount will be limited.
The FAST™ Riser comes standard with a rail-grabber clamp. A Flip-Up Offset Backup Rear Iron Sight module can be purchased separately. This feature will provide fast-transition BUIS capability to the FAST™ Riser. The Offset Rear Iron Sight Module is 100% compatible with existing Offset Front Sights such as those available from MAGPUL, Dueck Defense, Midwest Industries, and Knights Armament Company.
The FAST™ Riser is built from 7075-T6 Aluminum and Type III Hardcoat Anodized Black or FDE*.
Specifications
Height: 2.26″ to optic centerline
Material: Aluminum
Finish: Black or FDE





John B. (verified owner) –
Great pricing, super fast delivery, great customer communication and service. I always prefer to give my business to the little guys and this was a great experience. Order something from them and trust me…you’ll get a laugh when you open the box. You both made me smile so keep up the awesome business guys!
-John from Parker, CO
William (verified owner) –
The riser makes my 300blk night and day difference. For Rooftop thought going to be my go to for parts they shipped it out quick and the extra stuff they add in the box shows they care about their customer service and know the struggle.
D (verified owner) –
Using it on Tavor X95 with EXPS2. This is a quality piece. It does have some drawbacks that come with mounting the sight higher, but the comfort of more upright head position and faster target acquisition outweigh those minor drawbacks for me personally. I am keeping it. Fast shipping and quality service by The Rooftop team. Thanks for the meal.
Kord G. (verified owner) –
The riser is great, but the service through Rooftop was better. they even gave me a special surprise with my order. go check out @the.lion.lily on IG to see it!
also, DONT OVER TIGHTEN THE BOLTS! i snapped one off with too much torque. the box doesn’t come with that warning lol. I emailed rooftop after hours expecting a reply within a few days, but i got a response immediately. someone is taking care of business after everyone else goes home. overall i’m stoked about it anyway. it’s perfect height with my EXPS2. and next time i order kit it’ll be from rooftop. 100% satisfied
Trey C. (verified owner) –
The unity fast riser has totally changed shooting for me makes the whole experience just that much more comfortable and in cqb shooting has made me faster love this riser but love rooftop defense even more for having FDE color in stock and the incredibly fast shipping!