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With over 2,000 products to choose from, we have what you need to build or upgrade your AR-15.

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Great Selection on AR-15 Parts & Accessories

AT3 tactical offers a wide-range of top-rated AR 15 parts and tactical accessories. Build your ultimate AR-15 with our great selection of AR-15 scopesAR-15 magazineshandguards & quad railsbest red dot sightslower parts kitiron sightsupper receiverAR barrels, and more! We also carry AR-15 accessories from the top brands like MagpulAero & more!