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Micro AR-15 Builds
MCS Gearup’s huge selection of Micro AR upper receivers perfect for short AR pistol builds. Micro builds will produce heavy cycling and more recoil even in a light-recoiling caliber like 5.56 or .223, so consider upgrading one of these micro AR pistol uppers with a muzzle brake if it’s not already configured with one. Most of these upper assemblies are USA-made from the highest-quality forged parts. If you have any questions about micro 5" upper specs or parts compatibility before buying contact us at Sales@MCSGearup.com. We also sell a collection of pistol stabilizers.