M4 Le6921 Upper Group 14.5in With BCG And Sights

Name: M4 Le6921 Upper Group 14.5in With BCG And Sights
Brand: Colt
Availability: InStock

Colt · Upper Receiver

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Best price

$775.99at OpticsPlanet

In stock Sale checked Oct 1, 2026

Buy at OpticsPlanet

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Where to buy

Store	Price	Availability	Buy
OpticsPlanet Best price	$775.99Salechecked Oct 1, 2026	In stock	Buy at OpticsPlanet
MidwayUSA	$799.99checked Oct 1, 2026	In stock	Buy at MidwayUSA
Brownells	$853.85checked Oct 1, 2026	Out of stock	Buy at Brownells

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

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Lowest in-stock price in the last 30 days: $775.99 at OpticsPlanet. Dashed line = out of stock. Tracking since Sep 28, 2026.

Show the prices as a table

Store	Latest	Lowest	Highest
Brownells	$853.85	$853.85	$853.85
MidwayUSA	$799.99	$799.99	$799.99
OpticsPlanet	$775.99	$775.99	$775.99

Since Sep 28, 2026.

About this part

The M4 Le6921 Upper Group 14.5in With BCG And Sights is a 14.5" 5.56 / .223 upper receiver from Colt. It's sold by 3 stores (2 in stock), from $775.99 to $853.85. The lowest in-stock price in the last 30 days was $775.99 at OpticsPlanet.

Fits and works with

Caliber: 5.56 / .223 · Shop matching ammo
Bolt: Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
Barrel length: 14.5" · Handguards

Specifications

Manufacturer: Colt
Platform: AR-15
Caliber: 5.56 mm NATO

From the manufacturer

Add the Colt legend of reliability to your rifle or build with these complete feature 1/7 RH twist in a chrome lined, button rifled barrel. Available with or without a charging handle, bolt carrier group, and back up sights. All NFA rules apply. NOTE: "Stripped" does NOT include bolt carrier group (BCG), charging handle, or rear backup sight Mfg: Colt