Mkgs Complete Bolt Carrier Group Repair Kit .40 S&W

Name: Mkgs Complete Bolt Carrier Group Repair Kit .40 S&W
Brand: CMMG

CMMG · Upper Parts

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Best price

$169.95at CMMG

checked Oct 1, 2026

Buy at CMMG

Compare 3 stores

Where to buy

Store	Price	Availability	Buy
CMMG Best price	$169.95checked Oct 1, 2026	Check store	Buy at CMMG
OpticsPlanet	$153.99Salechecked Oct 1, 2026	Out of stock	Buy at OpticsPlanet
Brownells	$163.08checked 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.

Show the prices as a table

Store	Latest	Lowest	Highest
Brownells	$163.08	$163.08	$163.08
CMMG	$169.95	$169.95	$169.95
OpticsPlanet	$153.99	$153.99	$153.99

Since Sep 28, 2026.

About this part

The Mkgs Complete Bolt Carrier Group Repair Kit .40 S&W is an AR-9 upper part from CMMG. It's sold by 3 stores, from $153.99 to $169.95.

Specifications

Manufacturer: CMMG
Type: Bolt Assembly
Platform: AR-9

From the manufacturer

Needing some replacement parts for your Bolt Carrier Group? No worries, CMMG has you covered! Each Bolt Carrier Group Repair Kit comes with the following items: Bolt - 9mm OR .40 S&W- Choose Accordingly. Firing Pin Firing Pin Retainer Pin Key (RDB) Key Screw X 2 Bolt Cam Pin Extractor Ejector Ejector Spring Bolt Spring (RDB) Mfg: Cmmg