Ar15a4 Key & Bolt Carrier Assembly

Name: Ar15a4 Key & Bolt Carrier Assembly
Brand: Colt
Availability: OutOfStock

Colt · Upper Parts

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Best price

$124.99at Brownells

Out of stock checked Oct 1, 2026

Buy at Brownells

Where to buy

Store	Price	Availability	Buy	Add to build
Brownells	$124.99checked 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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Dashed line = out of stock. Tracking since Sep 28, 2026.

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Store	Latest	Lowest	Highest
Brownells	$124.99	$124.99	$124.99

Since Sep 28, 2026.

About this part

The Ar15a4 Key & Bolt Carrier Assembly is an AR-15 upper part from Colt. One store lists it, Brownells at $124.99.

Specifications

Manufacturer: Colt
Type: Bolt Assembly
Platform: AR-15

From the manufacturer

Factory original, fire control parts keep your select-fire Colt M16/M4 shooting reliably, so you'll be prepared to face intensive tactical operations with the confidence of knowing your weapon won't let you down. These parts are precision engineered and manufactured to strict quality control standards from the finest materials for correct fit in your gun. Mfg: Colt SPECS: Steel. Matte black finish.