Complete vs Stripped Upper: Which Should You Buy? (Live Prices)

Short answer: buy a complete upper if you want to bolt it to a lower and shoot; buy a stripped upper if you want to pick every part and have the tools to assemble it. The catch: many "complete" uppers do not include the bolt carrier group or charging handle. In our catalog on 24 October 2026, only 16 of 196 complete 5.56 upper listings said in the name that a BCG was included. Stripped uppers started at $49 (median about $121); complete uppers at $202 (median $797).

What each one includes

Stripped uppers

A stripped upper is the receiver, and many come with the forward assist and ejection port door already fitted: TacFire says the only things left to add to its stripped upper are a BCG, barrel, gas block, gas tube, handguard and muzzle device. Building one means fitting the barrel, torquing the barrel nut and fitting the gas system, so you need a vise, an upper receiver block and the right wrench (see torque specs).

Complete and assembled uppers

These come with the barrel, gas system and handguard installed. Whether the BCG and charging handle are included varies: CMMG says its Resolute assembled upper does not include either, while Geissele's Mk16 URGI comes with its REBCG and charging handle, and PWS fits a Radian Raptor charging handle to its Mk116. Read the listing before you compare prices, and budget for a BCG and charging handle if they are missing.

Which should you buy?

• Complete if it is your first AR, or you want a known-good upper; you can still swap the handguard or muzzle device later.
• Stripped if you want a specific barrel, gas system and handguard combination and enjoy building.

The same decision on the lower side is in complete vs stripped lower.

Uppers, with today's prices

Lowest price across the stores we track:

Compare every upper receiver, or match one to your lower in the AR-15 builder.

Frequently asked questions

Does a complete upper include the BCG?

Not always. Many complete or assembled uppers leave out the BCG and charging handle; CMMG's Resolute upper, for example, includes neither.

Is a stripped upper cheaper?

The receiver is, from $49 in our catalog, but once you add a barrel, gas system, handguard, BCG and charging handle the total is often close to a complete upper.

Do I need tools to build a stripped upper?

Yes: a vise, an upper receiver block, a barrel nut wrench and a torque wrench at minimum.

Do I need an FFL to buy an upper?

Federally, no: the lower receiver is the serialized firearm. State law can differ.

Will any complete upper fit my lower?

A mil-spec AR-15 upper fits a mil-spec AR-15 lower; AR-10 and pistol-caliber uppers need matching lowers.