SHOT Show 2019: Nighthawk Interchangeable Optic System

by
posted on January 22, 2019
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
nh_ios_lead.jpg

Previously, shooters who wanted an RMR mounted on a pistol was required to make a permanent modification to the slide, and mount an adapter plate for a specific RMR. This would limit the user to that one RMR and would completely remove the rear sight cut—fine if the shooter has selected his or her “forever” RMR optic.

However, environments change, and the rear optic also should be able to change. Nighthawk Custom is now providing the option between several RMR optics without taking away the fixed rear sight option with its Interchangeable Optics System (IOS) optic mounting system, which doesn't limit the user to one fixed sight. The user is able to change from iron sights to red dot optics in less than 30 seconds by simply loosening the set screw, pushing a pin out and sliding off the plate.


The slide has a tapered cut that returns the mount to the same spot each time a shooter remounts, maintaining zero. Three plate options accommodate the Trijicon RMR, the Viper Vortex and the RMSc Shield.

The IOS ensures perfect alignment between the fixed sights, delivering a lower one-third co-witness with the red dots. Additionally, this system allows for the user the ability to maintain a standard height front sight while running a red-dot optic.

“The IOS is an incredible opportunity to seamlessly enhance the Nighthawk 1911’s. With minimal investment, you can add the IOS to any existing pistol, even if you have not yet made your red dot selection,” said Nighthawk COO Nelson Davis. “The ease and adaptability of this system allows users to alternate between the standard look and function of fixed front and rear sights or modern red dot optics.”

MSRP is $350.00 and includes the standard iron sight plate (IOS slide cut and standard round top plate); additional optic plates are $150.00 each. For more, visit nighthawkcustom.com.
 
IOS Option Features:
     -Plate returns to zero
     -Rear sight alignment between plates
     -Fully machined from prehard material
     -Standard Novak sight cut
     -Low profile
     -Quick and easy plate removal
     -Standard Hight front sight for either iron sight or red dot use


 

 

Latest

New Large-Format Pistols for 2026
New Large-Format Pistols for 2026

5 New Large-Format Pistols for 2026

There's been a huge surge in the large-format pistol category, and 2026 continues to showcase new models answering the wants and needs of today's firearm owners.

Short & Powerful: The EOTech Vudu 4-12x36 mm Super Short Riflescope

EOTech's ultra-compact 3-9x32 mm Vudu was a popular addition to the company's variable-powered riflescope line, and the new 4-12x36 mm Vudu ups the ante with new features in a still-compact package.

The Armed Citizen® May 11, 2026

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

Ukraine Operators Use Drone Round to Defeat UAS

Ukrainian operators recently tested and defeated drones with the Drone Round—a purpose-built cartridge that requires no firearm modifications, no new equipment and no additional training.

From The Counter: The Gun Store Prime Directive

When visiting a firearm retailer, know when it’s appropriate to interject, and when you should keep quiet.

Red-Dot Occlusion Training: A Performance-Booster for You & Your Optic-Equipped Handgun

Red-dot occlusion is a passive technique that shooters can use to remain target-focused, thereby speeding up their performance with optic-equipped handguns.

Interests



Get the best of American Rifleman delivered to your inbox.