Gun Site Directory – O

Welcome to the ArmsVault Gun Site Directory. Browse the following gun sites for more guns, gun accessories and gun information.

For more gun sites, use the alphabetical menu at the top of the page.

– O –

Oak Tree Gun Club of Southern California

  • Southern California gun club.

Obermeyer Rifled Barrels

  • Rifle barrels.

Ocala Armory

  • Antique firearms, military firearms, collector firearms.

Ocala Sportsman’s Association

  • Shooting range located in Ocala, Florida.

Odenthal Gunsmithing

  • Gunsmithing, shotgun work, riflesmithing, custom rifles.

ODIN Works

  • Manufacturer of AR-15 parts and accessories.

Oehler Research

  • Ballistic chronographs.

Off The Grid Concepts

  • Custom Kydex holsters.

Ohio Gun Collectors Association

  • Ohio gun collecting organization.

Ohio Ordnance Works

  • Military firearms, military firearm parts, military firearm accessories.

Ohio Rapid Fire

  • Firearms, ammo, firearm accessories.

Ohio Skeet Association

  • Ohio skeet shooting information.

Ohioans for Concealed Carry

  • Second Amendment supporters.

OK Weber

  • Competition rifle parts.

Oklahoma Full Auto

  • Oklahoma machine gun shoot.

Oklahoma Leather Products

  • Single action holsters, single action cartridge belts, single action accessories, black powder holsters, black powder possible bags, black powder accessories.

Old Faithful Holsters

  • Leather Kydex Hybrid Holsters and holster kits. Concealment holsters that are designed to be highly concealable, extremely comfortable, and very easy to use.

Old Sarge’s Drop Zone

  • Military surplus.

Old West Reproductions

  • Old west holsters, gun rigs.

Old West Snake Oil

  • Firearm protecting oil.

Old Western Scrounger

  • Ammunition, antique firearms, ammunition, gun parts, military surplus, reloading supplies, shotgun ammo.

Old Winchesters

  • Pre 1898 antique firearms.

Olympic Arms

  • Manufacturer of AR15 rifles and 1911 handguns.

Olympic Arms Owners Association – OA2

  • Olympic Arms information.

Omega Safety Systems

  • Gun lock systems for automatic pistols, revolvers, rifles, and shotguns.

On Point Firearms

  • Firearms, firearm accessories, shooting supplies.

On Target Sports

  • Shooting supplies, firearms.

On The Mark

  • Concealed handgun license courses, gun training.

One Click Shooting

  • Shooting supplies, gun accessories, reloading supplies, gun holsters.

One Officer

  • Gun holsters, tactical gear, ammunition, gun accessories.

One Shot Tactical Supply

  • Tactical gear.

One Stop Knife Shop

  • Holsters, knives, tactical gear.

Online Guns

  • Online gun dealers, gun accessories.

Only The Best Firearms & Accessories

  • Firearms, firearm accessories, investment grade weapons.

On-Target Productions

  • Producer of instructional gun videos.

Op Tactical

  • Tactical gear, tactical vests, tactical holsters, tactical clothing, protective gear, weapon painting.

Operation Parts

  • Tactical gear, gun accessories for rifles, carbines and submachine guns.


  • Tactical gear, gun accessories.

Optic Zone

  • Firearm optics, optic mounts.

Optics Planet

  • Firearm optics, gun accessories.


  • Firearm optics, rifle scopes, laser boresights, night vision.


  • Laser range finders.

Ordnance Corps USA

  • Firearm information on CD.

Ordnance Direct

  • High capacity magazines, NFA weapon accessories, gun parts.

Oregon Trail Bullet Company

  • Silver bullets.

Orion 7 Enterprises

  • M1 Garand rifles, M1 Garand parts, M1 Garand accessories, M14 parts.

Orion Arms

  • Custom firearm engraving.

Osprey Worldwide

  • Night vision products, laser sights, holographic sights, laser bore sights.

Otis Technology

  • Gun cleaning systems.

Otte Gear

  • Tactical clothing.

Out of the Woods

  • Hand crafted gun cabinets.

Outdoor Bunker

  • Hunting, shooting, camping and outdoor gear.


  • Shooting tripods, firearm optics.


  • Gun cleaning supplies.

OutWest Systems

  • Producer of the OCAT SharpShot marksmanship training system.

Ozark Defense Group

  • Retailer of ammunition.