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AR 15 Lower Parts
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- 2020 New Scopes
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- Breitbart Exclusive Sale
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- Home Defense Build
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- Independence Day SCAR 20s Giveaway
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- 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 MOE Slim Line MILSPEC Carbine Stocks
- Magpul Magazines
- Magpul PMAG 10 M3 Generation Magazines
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- Mini-14
- Mission First Tactical California Compliant BATTLELINK Stocks
- Modern AK47 Giveaway
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- PCC AR9 3Gun Starter
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- Primary Arms GLx 4-16x Rifle Scopes
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- Roland Special Build
- Seekins Precision Havak Pro-Hunter PH2
- Select Anderson Manufacturing 16 inch 556 NATO M4 Uppers
- Select Ghost Firearms Pistol Kits
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- Select Smith and Wesson Bodyguard 380 Sub Compact Handguns
- Select Springfield Armory XD9 Fullsize Handguns
- Select Troy Industries Alpha BattleRails
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- Select Walther PK308 ACP Compact Handguns
- Shooting Gear
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- Spikes Tactical Complete Lowers
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- Stocks Under 60 Dollars
- Strike Industries AK or AR Featureless Grips
- Strike Industries AR15 Shift Pins
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- Triggers In Stock
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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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LEARN MORE ABOUT AR-15 PARTS AT PRIMARY ARMS
Primary Arms is your headquarter for AR 15 parts. Buy a complete AR 15 lower parts kit to fine-tune your latest build or individual parts like roll pins and detent springs. Find popular parts like a Bravo Company buffer tube, or a Magpul BAD Lever. All our lower parts come from the best manufacturers in the world, like Aero Precision, Anderson Manufacturing, Armalite, CMMG, Daniel Defense, Geissele, Hogue, JP Enterprises, Midwest Industries, Mission First Tactical, Odin Works, Radical Firearms, Rock River Arms, Seekins Precision, Strike Industries and more.