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    • Home
    • Firearms
      • Handguns
      • Rifles
      • Shotguns
    • Fold AR
    • PERSONAL PROTECTION
      • Taser
      • Bryan HD
      • Armor
    • Accessories
      • Suppressors
      • Optics
    • Apparel
    • Knives
    • Ammo
    • Brands
    • Photo Gallery
    • ATF Forms
    • About
    • FFL Transfers
    • Terms & Conditions
  • Home
  • Firearms
  • Fold AR
  • PERSONAL PROTECTION
  • Accessories
  • Apparel
  • Knives
  • Ammo
  • Brands
  • Photo Gallery
  • ATF Forms
  • About
  • FFL Transfers
  • Terms & Conditions

(631) 998-3561

Welcome to Niosi Firearms Development LLC.

Welcome to Niosi Firearms Development LLC.Welcome to Niosi Firearms Development LLC.Welcome to Niosi Firearms Development LLC.Welcome to Niosi Firearms Development LLC.

About NiosI Firearms Development

Niosi Firearms development is a Federally licensed weapons sales and manufacturing business located at the Gabreski airport in Westhampton Beach.

Our principal business is sales to Law Enforcement and Governmental Agencies, however, in these uncertain times we are stocking civilian appropriate weapons and ammunition.

Long guns (rifles and shotguns), as well as sidearms for those licensed to acquire them (including Glock, Sig, S&W, Wilson Combat, Nighthawk Custom, Heckler and Koch, Ruger and FNH) are in stock, as well as our usual array of select fire Law Enforcement only weapons.

We provide gun smithing to convert your existing gun library to NY State SAFE Act compliance.

A full inventory of women’s and men’s First Tactical gear is on display.

As are adult, student, and child size discrete bullet proof backpacks. All provide LvL IIIA protection against all pistol calibers and shotgun gauges fired from as close as 15 feet. Certified by the US National Institute of Justice and the UK Centre for Applied Science and Technology (CAST). 

-FoldAR- Double Fold AR Pistol Available in 223 wylde / 5.56 nato or 300 Blackout $2,399

Find out more / order

Rugged suppressors

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Niosi Firearms was featured on NYGUNGUYS PODCAST Episode 31

Click to listen

Personal Protection / Less than lethal

Personal safety has never been more complete with the TASER Pulse+ device. Weighing just 8 ounces, this intuitively-designed device is revolutionizing the self-defense market.  Civilian legal, no permit required!

The Byrna HD (Home Defense) is an incredibly powerful and effective non-lethal self-defense weapon that can be taken virtually anywhere. Powered by compressed air (CO2), the Byrna HD shoots .68 caliber round kinetic and chemical irritant projectiles that can disable a threat from up to 60-feet away.


We carry a full line of Safe Life armor including high level ballistic vest and plates.

Covertly adding a Safe Life ballistic plate to your child backpack transforms it to a bulletproof backpack.

TASER PULSE+

Taser Pulse+ is a less then lethal self-defense devices that does not require a permit. In stock!

Find out more

Byrna HD

The Byrna HD is not a firearm*, but is an incredibly powerful and effective self-defense weapon for men and women of all ages and abilities.

Find out more

Safe life armor

Protect yourself with Safe Life body armor and panels.  In stock!

Find out more

Nighthawk Custom Firearms

Niosi Firearms is proud to announce we now carry Nighthawk Custom Firearms. Nighthawk Custom  manufactures some of the worlds BEST 1911’s. In addition to 1911 pistols, Nighthawk Custom also manufactures top-of-the-line tactical shotguns based on the world’s most popular shotgun platform, the Remington 870.

Contact Us

Better yet, see us in person!

We love our customers, so feel free to visit during normal business hours.

Niosi Firearms llc

200 Rogers Way, Westhampton Beach, NY 11978

(631) 998-3561 eastendmarksman@gmail.com Twitter: https://twitter.com/@NiosiD

Hours

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Niosi Firearms is an essential business open during our regular schedule.

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Copyright © 2020 Niosi Firearms LLC - All Rights Reserved.

  • Home
  • Handguns
  • Rifles
  • Shotguns
  • Fold AR
  • Suppressors
  • Optics
  • Apparel
  • Knives
  • Ammo
  • Photo Gallery
  • ATF Forms
  • About
  • Contact Us
  • FFL Transfers
  • Terms & Conditions