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.
Shop AR upper parts online by comparing fitment, checking current availability, and reviewing specifications such as receiver pattern, barrel compatibility, handguard style, and intended use. A better parts order starts with the exact AR platform you own, then moves to function, installation, and how the rest of the build comes together.
These are the details AR upper parts buyers should check before they buy:
Browse AR upper parts online, or visit our gun store in St. Clair Shores, Michigan. ICB Firearms serves customers from nearby cities including Macomb, Clinton Township, Grosse Pointe, Warren, and Royal Oak.
Most AR upper parts do not follow the same transfer process as serialized firearms, though exact requirements can depend on the item. Shipping details, item restrictions, and checkout steps can vary by part and destination.
Fitment and safe installation still matter after the sale. Contact the shop for current store policies, accepted identification, and any order questions tied to shipping, pickup, or compatibility.
AR upper parts can include components tied to the upper assembly, such as rail-related parts, barrel-related items, and charging components. Exact fit depends on the platform and configuration.
Start with the exact AR pattern and upper setup you own. A close match is not enough when fitment matters.
Many do, but not every part works the same across every setup. Check the listing details before you order.
Yes. Barrel length can affect balance, handling, and how the upper fits the rest of the build.
Yes. Review the item details and shipping information before checkout.
Most do not, though exact requirements can depend on the item. Check the order details before you buy.
Some parts are simple to install, and others may need tools or a gunsmith. Check fitment and installation details before you begin.
That is usually the safest place to start. A direct match can help keep fit and function more consistent.
