NBS AR-15 Knurled Dust Cover Kit

Name: NBS AR-15 Knurled Dust Cover Kit
Brand: NBS

NBS · Upper Parts

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Best price

$6.95at Dirty Bird

Sale checked Oct 31, 2026

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Store	Price	Availability	Buy	Add to build
Dirty Bird Best price	$6.95Salechecked Oct 31, 2026	Check store	Buy at Dirty Bird
AR15Discounts	$7.95checked Oct 31, 2026	Check store	Buy at AR15Discounts

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Dashed line = out of stock. Tracking since Oct 28, 2026.

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Store	Latest	Lowest	Highest
AR15Discounts	$7.95	$7.95	$7.95
Dirty Bird	$6.95	$6.95	$6.95

Since Oct 28, 2026.

About this part

The NBS AR-15 Knurled Dust Cover Kit is an AR-15 upper part from NBS. It's sold by 2 stores, from $6.95 to $7.95.

Specifications

Manufacturer: NBS
Type: Ejection Cover
Platform: AR-15

From the manufacturer

The NBS knurled ejection port cover rod allows you to install a mil-spec style ejection port cover without having to install the tiny c-clip that holds the rod in place. The end of the rod is knurled, preventing the rod from passing through the hole in the upper receiver. This method makes building your upper faster and easier! Manufactured to mil-spec dimensions Fits all common AR15 and M16 upper receivers Ejection port (dust cover) Knurled ejection port rod - Improved with larger knurling! Ejection port spring Phosphate coated Weight .8 ounces 100% USA Made