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- 2020 New Scopes
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- Apparel
- B5 Systems Type 23 P Grips
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- Barrels Under 100 Dollars
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- Home Defense Build
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- KynSHOT Precision Carbine Recail Dampers
- Lancer Systems 20 Round 300 BLK Magazines
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- Magpul 2nd Generation MS3 Single QD Slings
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- Magpul MOE Fixed Carbine Stocks
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- Magpul PMAG 10 M3 Generation Magazines
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- Magpul XTM Handstop Kits
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- Mission First Tactical California Compliant BATTLELINK Stocks
- Modern AK47 Giveaway
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- PCC AR9 3Gun Starter
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- Roland Special Build
- Seekins Precision Havak Pro-Hunter PH2
- Select Anderson Manufacturing 16 inch 556 NATO M4 Uppers
- Select Diamondhead USA VersaRails
- Select Ghost Firearms Pistol Kits
- Select Radical 16 inch Rifle Kits
- Select Smith and Wesson Bodyguard 380 Sub Compact Handguns
- Select Springfield Armory XD9 Fullsize Handguns
- Select Troy Industries Alpha BattleRails
- Select Troy Rear Folding BattleSights
- Select Walther PK308 ACP Compact Handguns
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- Spikes Tactical Complete Lowers
- Spikes Tactical Laser Engraved Ejection Doors
- Stocks Under 60 Dollars
- Strike Industries AK or AR Featureless Grips
- Strike Industries AR15 Shift Pins
- Strike Industries Simple Featureless Grips
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- VG6 Precision Gamma High Performance Muzzle Brakes
- Veterans Day Deal
- WMD NiB X AR15 Stripped Forged Upper Receivers
- Wholesale Featured Products
- X39 Space Gun Build
- XD S Holsters
- Yankee Hill Machine Phantom Flash Hiders
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AR-15 PARTS & ACCESSORIES
Primary Arms is your single source for all things relating to the AR-15 and M4. We pride ourselves on having a wide variety of AR-15 parts, firearms, tactical accessories, and gear. We carry hundreds of the top leading brands such as Daniel Defense®, CMC, Spikes, Magpul, BCM, and many more. Browse through our AR-15 Parts Store for triggers, upper receivers, bolt carriers, gas blocks, lower parts, kits, pistols, sights, grips, rails, handguards, and much more. Primary Arms is your one-stop-shop online gun store for firearms, parts, and accessories. We ship fast and have an industry-leading customer service.