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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 65027 posts
AR15 Uppers
CMMG Upper Receiver Assembly for Mk4/ AR15 Armor
$30 offOriginal price was: $149.95.$119.99Current price is: $119.99.
AR15 Uppers
COLT EPR UPPER 5.56 16″ MLOK BLK
$49 offOriginal price was: $1,049.00.$999.99Current price is: $999.99.
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.
AR15 Uppers
DANIEL DEFENSE DDM4 300S URG 300BLK 10.3″
$101 offOriginal price was: $1,452.00.$1,351.00Current price is: $1,351.00.
Other AR15 Accessories & Parts
DANIEL DEFENSE MK18 RIII URG 5.56MM 10.3″ BLK
$105 offOriginal price was: $1,517.00.$1,412.00Current price is: $1,412.00.
Other AR15 Accessories & Parts
DANIEL DEFENSE MK18 RIII URG 5.56MM 10.3″ FDE
$105 offOriginal price was: $1,517.00.$1,412.00Current price is: $1,412.00.
AR15 Lowers
DBF CARBON 15 LOWER RECEIVER MULTICAL BLK
$15 offOriginal price was: $78.00.$62.99Current price is: $62.99.
AR15 Parts
DD Grip-N-Rip Charging Handle Ambi 5.56
$8 offOriginal price was: $116.00.$108.00Current price is: $108.00.
AR15 Uppers
DD M4A1 UPPER URG 14.5″PB 556 FDE
$113 offOriginal price was: $1,612.00.$1,499.00Current price is: $1,499.00.
AR15 Uppers
DD M4V7 LW UPPER 556 16″ MLOK BLK
$92 offOriginal price was: $1,300.00.$1,208.00Current price is: $1,208.00.
AR15 Uppers
DD5 V3 UPPER 7.62 16IN 1:11 15IN DD5
$363 offOriginal price was: $1,931.00.$1,567.99Current price is: $1,567.99.
