Find the right guns and parts you need for the caliber you’re aiming for. We have a vast number of AR-15 parts in a variety of calibers, from classic 5.56 NATO to .300 Blackout and newer cartridges like .350 Legend and 6mm ARC. Don’t forget the AR-10 platform in .308 READ MORE
AT3’s instructional videos on every aspect of the AR15 are invaluable. I watched them all on YouTube over the past week, and my first AR15 is being delivered today. I am looking forward to tinkering with my new rifle using AT3’s knowledge base as my guide.
First I wanna say amazing customer service my items arrived really fast and packaged very safely. Second the FDE is a perfect match for Magpul products. I paired my AT3™ FF-ML 10.5″ Complete AR 15 Pistol Upper with Franklin Armory lower with bfs||| trigger .. AMAZING! GOT A FOREVER CUSTOMER HERE AT3!
I've ordered a few times from these guys. Prices are great. Things ship fast. Like next day shipped out. Can't ask for more! Also, their AT3 line of products are legit.
I ordered from AT3 for the first time on Monday and I received my order today (2 days later). When a lot of companies are making excuses for long turnover times, AT3 provides top notch customer service and very fast shipping.
Find the right guns and parts you need for the caliber you’re aiming for. We have a vast number of AR-15 parts in a variety of calibers, from classic 5.56 NATO to .300 Blackout and newer cartridges like .350 Legend and 6mm ARC. Don’t forget the AR-10 platform in .308 Winchester, 6.5 Creedmoor, and more. Plus, pistols and components for handguns and pistol caliber carbines alike.
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Barrels - .223/5.56 (144)
