Home » Complete AR Uppers » Page 2

Complete AR Uppers

Filter Products
Hide Unavailable Products
Category
Brand
Caliber
Type
Fits
Action Type
Barrel Length
Capacity
Frame Size
Sights
Features
Magnification
Dot Size
Grain Weight
Bullet Type
Rounds Per Box
Stock
Material
Handedness
Firearm Type
Color / Finish
Price

Showing 49–62 of 62 results

Complete upper buying guide

An upper receiver group typically includes the barrel, handguard, upper receiver, gas system, and possibly a BCG and charging handle depending on the manufacturer. Verify the contents before purchasing. Some “complete uppers” need a BCG and charging handle to function — you need those to run the rifle.

Headspace is the critical dimension — the gap between the bolt face and the chamber when the bolt is closed. A complete upper from a reputable manufacturer has been headspace-checked at the factory. If you are assembling your own upper or combining a barrel and BCG from different sources, have it headspace-checked by a gunsmith before shooting.

Daniel Defense, BCM, and SIONICS Weapon Systems are the upper manufacturers we stock and trust for a duty or defensive application. Complete uppers are not firearms on their own, so they ship straight to your door with no FFL needed.