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Click hereNAVIGATION
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- ON SALE THIS WEEK
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Ammunition
- NEW INVENTORY
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AK 47 / 74
- Atlantic Apparel
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Atlantic Arms MFG
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AR15 Rifles
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Ban State Firearms
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Battle Rifles
- Body Armor
- Collectibles & Closeouts
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California Legal
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Classic Military Arms
- Cool Rifles/Pistols
- Emergency Preparedness
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Handguns/Pistols
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Gold Guns
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Gun Wood Accents
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Home Defense
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H&K, UZI's MAC-10
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Left Handed Firearms
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Knives & Bayonets
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Mags
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Optics
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Military Surplus
- MREs
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Parts & Accessories
- AK47 Parts
- AK47 Spec Ops Parts
- AK47 Stock Sets
- AR15 Parts
- Ammo
- Barrels
- Carry Handles
- Definitive Arms
- Echo Nine Three
- Emergency Supplies
- Grips
- Gun Cases
- Handguard
- HK MP5 - HK91 - PTR PARTS
- Mounts
- JMac Customs
- Muzzle Brakes
- Pistol Braces
- Rails
- Rifle Dynamics
- RS Regulate
- Slings
- Stocks
- Triggers
- WBP AK Parts
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Receivers
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Parts Kits
- Replica/ Display Weapons
- Reviews
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Shotguns
- Sniper Rifles
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Stock Sets
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Tactical Rifles
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Videos
AR15 Uppers
The AR15 Rifles modular design allows you to easily switch out the upper and change calibers or configurations. Simply push the 2 lower pins out and install the new upper and you are ready to rock & roll! Atlantic Firearms offers a wide variety of AR-15 rifles and AR15 Upper receivers. We carry a varitey of upper receivers in many barrel lengths and rail configurations.