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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 63457 posts
AR15 Uppers
RISE CMPLT UPPR 22 ARC 18″ PAT BRN
$200 offOriginal price was: $1,199.00.$999.00Current price is: $999.00.
AR15 Uppers
RISE CMPLT UPPR 6MM ARC 18″ BLACK
$200 offOriginal price was: $1,199.00.$999.00Current price is: $999.00.
AR15 Uppers
RISE CMPLT UPPR 6MM ARC 18″ PAT BRN
$200 offOriginal price was: $1,199.00.$999.00Current price is: $999.00.
AR15 Bolts
RISE LOW MASS BCG .223/5.56 NIB
$73 offOriginal price was: $259.99.$187.49Current price is: $187.49.
AR15 Uppers
Rock River Arms BB0470 LAR-15M RRAGE 3G Complete
$37 offOriginal price was: $540.00.$502.99Current price is: $502.99.
Other AR15 Accessories & Parts
RRA BOLT CARRIER GROUP 5.56X45 – PHOSPHHATE FULL
$14 offOriginal price was: $168.00.$153.99Current price is: $153.99.
AR15 Uppers
RRA CMP COYOTE CAR A4 UPR 300BLK 16″
$142 offOriginal price was: $820.00.$677.99Current price is: $677.99.
AR15 Uppers
SANTAN STT-15 PILLAR UPPER RECEIVER
$4 offOriginal price was: $210.00.$206.50Current price is: $206.50.
Other AR15 Accessories & Parts
SHADOW SYSTEMS MR/DR/XR ROUND – TIP FIRING PIN
$6 offOriginal price was: $44.00.$37.76Current price is: $37.76.
AR15 Lowers
SHARPS BROS HELLBREAKER AR-15 – STRIPPED LOWER RECEIVER
$15 offOriginal price was: $289.95.$275.45Current price is: $275.45.
AR15 Lowers
Sharps Bros SBLR07 Overthrow Stripped Lower Multi-Caliber Black
$14 offOriginal price was: $279.95.$265.95Current price is: $265.95.
