Browse our inventory of AR upper parts from trusted brands like Cole-TAC, Daniel Defense, NcSTAR, Rise Armament, and VKTR. ICB Firearms carries quality AR upper parts for builders and shooters who need dependable components for upgrades, repairs, routine maintenance, and custom rifle setups across common configurations and calibers. You can narrow your search with AR barrels, AR bolt carrier groups, and AR charging handles when you want to tune fit, reliability, and overall performance. We also stock AR gas system and AR handguards to help complete upper assemblies and keep your rifle configured for range work, training, and regular use.
Showing 17–32 of 1945 results
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Sale!

3P Eliminator Flash Hider
Original price was: $99.00.$60.99Current price is: $60.99. Add to cart -

5.56 NATO BCG with 158 Steel & Manganese Phosphate for AR-15
$199.00 Add to cart -
Sale!

5.56 NATO/.223 REM ADVANCED BOLT CARRIER GROUP FOR AR-15
Original price was: $179.99.$169.99Current price is: $169.99. Add to cart -

5.56X45 NATO LIGHTWEIGHT MIL-SPEC BCG NITRIDE CHAMELEON PVD
$276.00 Add to cart -
Sale!

5.56X45MM NATO LIGHTWEIGHT MIL-SPEC BCG NITRIDE BLACK
Original price was: $249.00.$230.00Current price is: $230.00. Add to cart -

5.56X45MM NATO LIGHTWEIGHT MIL-SPEC BCG NITRIDE TIN PVD
$276.00 Add to cart -

5.56X45MM NATO MIL-SPEC BCG NITRIDE BLACK
$145.00 Add to cart -
Sale!

5.56X45MM NATO MIL-SPEC BCG NITRIDE CHAMELEON PVD
Original price was: $199.00.$184.00Current price is: $184.00. Add to cart -
Sale!

5.56X45MM NATO MIL-SPEC BCG NITRIDE TIN PVD
Original price was: $199.00.$184.00Current price is: $184.00. Add to cart -

7.62X39MM TYPE 1 BOLT CARRIER GROUP FOR AR-15 NITRIDE BLACK
$152.00 Add to cart -
Sale!

7/8” FOREARM END CAP ALUMINUM BLACK
Original price was: $27.95.$23.75Current price is: $23.75. Add to cart




