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AR15 Parts
Find everything you need to build, upgrade, or repair your AR-15 at ICB Firearms, located in St. Clair Shores, MI. We carry a full selection of AR parts, including barrels, buffer tubes, BCGs, charging handles, handguards, and trigger assemblies. Whether you’re upgrading your AR rifle for competition or outfitting a home defense build, we have you covered. Pair your components with AR magazines, gun scopes, and gear for the ultimate tactical setup. Be sure to browse the full rifle parts section for other compatible upgrades. Quality parts are essential for dependable performance, and our selection is designed for serious builders and shooters alike. Shop AR-15 parts today and start building with confidence.
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1 - 16 of 63607 posts
AR15 Uppers
CMMG DISSENT MK4 UPPER GROUP 5.56 10.5 BLK
$147 offOriginal price was: $1,199.95.$1,052.99Current price is: $1,052.99.
AR15 Uppers
CMMG DISSENT MK4 UPPER GROUP 5.56 16.1 BLK
$160 offOriginal price was: $1,299.95.$1,139.99Current price is: $1,139.99.
AR15 Uppers
CMMG DISSENT MK4 UPPER GROUP 5.56 6.5 BLK
$147 offOriginal price was: $1,199.95.$1,052.99Current price is: $1,052.99.
AR15 Uppers
CMMG DISSENT UPPER GROUP 5.7X28 6.5 BLK
$147 offOriginal price was: $1,199.95.$1,052.99Current price is: $1,052.99.
AR15 Uppers
CMMG DISSENT UPPER GROUP 9MM 16.1 BLK
$160 offOriginal price was: $1,299.95.$1,139.99Current price is: $1,139.99.
AR15 Uppers
CMMG DISSENT UPPER GROUP 9MM 6.5 BLK
$147 offOriginal price was: $1,199.95.$1,052.99Current price is: $1,052.99.
AR15 Uppers
CMMG RESOLUTE MK4 UPPER GROUP 300BLK 16.1 BLK
$132 offOriginal price was: $949.95.$817.99Current price is: $817.99.
AR15 Uppers
CMMG RESOLUTE MK4 UPPER GROUP 6.5GREN 16.1 BLK
$132 offOriginal price was: $949.95.$817.99Current price is: $817.99.
AR15 Uppers
CMMG RESOLUTE UPPER GROUP 9MM 16.1 BLK
$123 offOriginal price was: $999.95.$876.99Current price is: $876.99.
AR15 Uppers
CMMG Upper Group Banshee 5.7x28mm 8″ Black
$136 offOriginal price was: $974.95.$838.99Current price is: $838.99.
AR15 Uppers
CMMG UPPER RECEIVER AR15 – BANSHEE 9MM 5″
$113 offOriginal price was: $924.95.$811.99Current price is: $811.99.
Other AR15 Accessories & Parts
DANIEL DEFENSE DD4 RIII URG 5.56MM 11.5″ BLK
$105 offOriginal price was: $1,517.00.$1,412.00Current price is: $1,412.00.
