AR-15 Upper Receiver Parts
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147 products
Handguards & Quad Rails
115 products
Complete Uppers
118 products
Front Grips
132 products
Upper Receivers & Parts
355 products
Barrels
465 products
Muzzle Devices
98 products
Charging Handles
135 products
Bolt Carrier Groups
64 products
Gas Blocks & Tubes
143 products
Handguard Accessories
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AT3™ SPEAR XL V2 Suppressor Ready Free Float AR-15 Handguard – 12 & 15 Inch – M-LOK
DAILY DEALNEWRECOMMENDED
16 options
Doorbuster
AT3™ AR-15 Bolt Carrier Group Black Nitride – .223/5.56 NATO .300 Blackout .350 Legend
RECOMMENDED
Best AR-15 Upper Receivers
AT3 Tactical provides the best AR-15 upper receivers – all in stock and ready to ship. Customize your AR-15 with ease with our wide-range of upper receivers including handguards & quad rails, gas blocks & tubes, bolt carrier groups, charging handles, upper receivers & parts, barrels, front grips, and muzzle devices.
Shop from our AT3 brand and those from top brands such as Ballistic Advantage, Aero Precision, Magpul, and more!