Uppers & Parts - .223/5.56
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- AT3 Tactical (209)
- UTG (115)
- Luth-AR (57)
- JP Enterprises (30)
- Yankee Hill Machine (13)
Caliber
- .223/5.56 (527)
- 9mm (385)
- .300 Blackout (138)
- .350 Legend (46)
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AT3™Sale!
AT3 Upper Receiver Black + AT3 Bolt Carrier Group + Breek Arms Warhammer Charging...
Complete your Next Build with AT3's Top-Selling Billet Upper Receiver and BCG plus the Trusted Breek Arms Warhammer Charging Handle Save by bundling vs purchasing the parts individually, plus free...$249.99Only$212.49 -
AT3™Sale!
AT3™ Slick Side AR-15 Upper with Black Nitride 5.56 Bolt Carrier Group
AT3 Black Nitride Bolt Carrier Group with Slick Side Billet Upper - 8 Colors to Choose From Get a head start on your build with the AT3 Black Nitride Bolt...8 Options -
NEW
Yankee Hill Machine Dust Cover Assembly with Caliber Markings
Yankee Hill Machine Dust Cover Assembly with Caliber Markings This precision-engineered dust cover not only enhances the aesthetics of your firearm but also serves a crucial functional purpose. Laser-engraved caliber markings...3 Options -
UTG Quick Install Dust Cover
A Tool-Free Replacement Dust Cover For 223/5.56 Mil-Spec Rifles The UTG Quick Install Dust Cover is an ideal replacement dust cover kit for .223/5.56 caliber rifles. This piece offers a... -
NEW
Luth-AR Field Repair Kit
Luth-AR Field Repair Kit This field repair kit for your AR-15 has lots of essential components that are useful for making on-the-spot repairs or adjustments in the field. These kits... -
AT3™Sale!
AT3 Tactical Extractor for .223/5.56 Bolts – Black Nitride
Replacement for a Broken AR15 Extractor If you've broken an extractor in your AR15, you're obviously going to need to fix it. Thankfully, it's not too difficult to do, especially... -
JP Enterprises Enhanced AR 15 Gas Ring – .223
One-Piece 3-Layer Gas Ring For A Solid Gas Seal The JP Enterprises Enhanced Gas Ring utilizes a one-piece 3-layer design in replacement of the traditional three-piece gas rings. It is...
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