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AR-15

The AR-15 is the undisputed standard for modularity and performance. Whether you're setting up a home defense platform, upgrading to a duty rifle, or building a range gun that everyone will be envious of, Classic Firearms is here to help. Check out our selection of AR-15 rifles and AR-15 pistols from popular brands including ATI, Radical, Colt, Springfield, and Daniel Defense. If building is more your thing, we offer a great selection of upper receivers, lower receivers, kits, and parts. Of course, do not forget the magazines. All at Classic Firearms' incredible prices.

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1-48 of 4366 Products
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ATI Alpha Maxx Semi-Automatic AR-15 Pistol, 5.56 Nato, 7.5" Bbl, M-LOK Handguard,1-30 & 1- 60 Rd Mag, Flip-Up Sights, Adj Brace, Black - ATIGAX5567ML60
$349 99 $419.99
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Gen II AR-15 / M16 100 Round Dual Drum Magazine .223/5.56 With Reinforced Feed Lips in Black
$99 99 $119.99
In Stock
AR-15/M16 30 Round Steel Magazine
$12 99 $14.99
In Stock
Only 3 Left!
Griffin Armament MK2 Ambi Stripped AR-15 Lower Receiver - Ambidextrous Controls - Flared Magwell - Anodized Black - MK2AL
$199 99 $219.00
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Radical Firearms, AR-15 Rifle 5.56 Nato, 16" Socom Profile Barrel, RPR Free Float Rail, 30 Rd Mag, B5 Bravo Stock, Shooters Pkg W/ Crimson Trace Optic
$479 99 $499.99
In Stock
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Retay RA1522, .22LR, Semi Automatic Pistol, Aluminum MLOK Handguard, Flip Up Sights, 8" Barrel, 25rd Magazine, Foldable Brace, 1/2x28 Threaded, Black
$299 99 $319.99
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Amend2 .556 / 223 Caliber AR-15 30 Round AR-15 Magazine Model 2 - MOD2BLK30
$8 99 $10.99
In Stock
ATI Alpha Maxx AR-15, Semi Automatic Pistol, 5.56 NATO/.223, 7.5" Threaded Barrel, (1) 30rd Magazine, Flip Up Sights, FDE - ATIGAX5567MLCFDE30
$349 99 $399.99
In Stock
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ProMag DPMA2 LR-308 308 Winchester/7.62 NATO 30rd Black Finish
$13 99 $15.82
In Stock
COL-A16B for sale at ClassicFirearms
$12 49 $13.08
In Stock
Only 3 Left!
Leapers UTG - AR15 Magazine - .223/5.56 - 10 Round Capacity - Black Polymer - Blue Anti-Tilt Follower - Stainless Steel Spring - RBT-AM10
$7 99 $9.97
In Stock
Franklin Armory Binary AR-Essential Black Curved Trigger - 0050633BLK
$179 00 $249.00
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ATI ALPHA MAXX HGA 5.56 Nato, Semi-Auto, AR-15 Platform Pistol, 7.5" Bbl, 7" MLOK Rail, Flip Up Sights, 60 Rd Mag, Rear Brace - FDE
$369 99 $375.61
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UTG Leapers Ultra Slim Angled Foregrip M-LOK Matte Black
$17 49 $22.97
In Stock
Radical Firearms RF00133 - AR-15 Pistol, 7.5 Barrel, 5.56 Caliber, 7" RPR Free Float M-Lok Rail, Optic Ready
$399 99 $429.99
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TacFire MZ1020 Linear Compensator Black Nitride Steel with 1/2"-28 tpi Threads, 2.26" OAL & 0.87" Diameter for 5.56x45mm NATO AR-15
$16 99 $19.99
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Radical Firearms - AR762 - Semi-Automatic Rifle - 16" Barrel - 7.62x39mm - 10 Round 7.62x39 AR Mag - Free Float Forearm - Model # RF00078
$449 99 $499.99
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Radical Firearms FR16-5.56SOC-15RPR, AR-15 Rifle 5.56 Nato, 16" Socom Profile Barrel, RPR Free Float Rail - 30 Round Mag - RF00028
$419 99 $479.99
In Stock
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ATI Alpha Maxx Semi-Auto AR-15 Pistol,5.56 Nato/.223 Rem, 7.5" Barrel, 7" M-LOK Rail, 1-60 Rd Mag, Blade Brace, Flip Up Sights, ATIGAX5567MLB60
$349 99 $399.99
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ATI Alpha Maxx AR-15 Rifle, 5.56 NATO/.223 Rem, 16" Barrel, Muzzle Brake, Collapsible Stock, 60rd Magazine, Flip Up Sights, 15" MLOK Handguard, Black
$369 99 $419.99
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Griffin Armament MK2 Ambi Stripped AR-15 Lower Receiver - Ambidextrous Controls - Flared Magwell - Terra Brown - MK2ALFDE
$209 95 $219.95
In Stock
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Radical Firearms AR15, 300 AAC Blackout Caliber, 16" Barrel,15" RPR M-LOK Rail, B5 Bravo Stock, B5 Grip, A2 Flash Hider - RF00061
$429 99 $479.99
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ATI Alpha Maxx Semi-Automatic AR-15 Pistol 8.5" Barrel, .300 Blackout, M-LOK Handguard, 30 Round Mag, Adj Brace & Flip Up Sights
$369 99 $399.99
In Stock
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