Caliber Marked Dust Cover Assembly 5.56mm NATO

Name: Caliber Marked Dust Cover Assembly 5.56mm NATO
Brand: Yankee Hill Machine
Availability: InStock

Yankee Hill Machine · Upper Parts

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Best price

$15.50at Brownells

In stock checked Oct 1, 2026

Buy at Brownells

Compare 7 stores

Where to buy

Store	Price	Availability	Buy
Brownells Best price	$15.50checked Oct 1, 2026	In stock	Buy at Brownells
MidwayUSA	$15.50checked Oct 1, 2026	In stock	Buy at MidwayUSA
OpticsPlanet	$16.99Salechecked Oct 1, 2026	In stock	Buy at OpticsPlanet
GunMag Warehouse	$17.99checked Oct 1, 2026	In stock	Buy at GunMag Warehouse
Ammunition Depot	$21.99checked Oct 1, 2026	In stock	Buy at Ammunition Depot
Battlehawk Armory	$12.25Salechecked Oct 1, 2026	Check store	Buy at Battlehawk Armory
Palmetto State Armory	$15.99checked Oct 1, 2026	Check store	Buy at Palmetto State Armory

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: $15.50 at Brownells. Dashed line = out of stock. Tracking since Sep 27, 2026.

Show the prices as a table

Store	Latest	Lowest	Highest
Ammunition Depot	$21.99	$21.99	$21.99
Battlehawk Armory	$12.25	$12.25	$12.25
Brownells	$15.50	$15.50	$15.50
GunMag Warehouse	$17.99	$17.99	$17.99
MidwayUSA	$15.50	$15.50	$15.50
OpticsPlanet	$16.99	$16.99	$16.99
Palmetto State Armory	$15.99	$15.99	$15.99

Since Sep 27, 2026.

About this part

The Caliber Marked Dust Cover Assembly 5.56mm NATO is an AR-15 upper part from Yankee Hill Machine. It's sold by 7 stores (5 in stock), from $12.25 to $21.99. The lowest in-stock price in the last 30 days was $15.50 at Brownells.

Fits and works with

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

Specifications

Manufacturer: Yankee Hill Machine
Type: Ejection Cover
Platform: AR-15

From the manufacturer

YHM has long been a supplier of Caliber Marked upper receivers, but they soon asked themsleves ""What if we want to change the caliber of that upper receiver?"" For this reason, they now offer caliber marked dust covers for those who may end up changing the caliber of their top end/upper receiver. SPECIFICATIONS Assemblies Include the following: Caliber Marked Dust Cover Rod and Retaining Clip Spring Mfg: Yankee Hill Machine Co., Inc.