Action Tuning Kit

Name: Action Tuning Kit
Brand: CMMG
Availability: InStock

CMMG · Upper Parts

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Best price

$21.99at MidwayUSA

In stock checked Oct 1, 2026

Buy at MidwayUSA

Compare 4 stores

Where to buy

Store	Price	Availability	Buy
MidwayUSA Best price	$21.99checked Oct 1, 2026	In stock	Buy at MidwayUSA
CMMG	$24.95checked Oct 1, 2026	Check store	Buy at CMMG
Brownells	$23.85checked Oct 1, 2026	Out of stock	Buy at Brownells
OpticsPlanet	$35.99Salechecked Oct 1, 2026	Out of stock	Buy at OpticsPlanet

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: $21.99 at MidwayUSA. Dashed line = out of stock. Tracking since Sep 28, 2026.

Show the prices as a table

Store	Latest	Lowest	Highest
Brownells	$23.85	$23.85	$23.85
CMMG	$24.95	$24.95	$24.95
MidwayUSA	$21.99	$21.99	$21.99
OpticsPlanet	$35.99	$35.99	$35.99

Since Sep 28, 2026.

About this part

The Action Tuning Kit is an AR-15 upper part from CMMG. It's sold by 4 stores (1 in stock), from $21.99 to $35.99. The lowest in-stock price in the last 30 days was $21.99 at MidwayUSA.

Specifications

Manufacturer: CMMG
Platform: AR-15

From the manufacturer

CMMG's Action Tuning Kits have been popular options for AR-15 owners looking to boost the reliability and shooting experience of their carbines, and now there's a dedicated Action Tuning Kit designed for use on LAW Tactical Folding Adapter-equipped AR-15s. Each CMMG Action Tuning Kit comes with several weights that are designed to enhance the reliability and smooth operation of an AR-15 action, and the LAW Tactical Folding Adapter Tuning Kit features shortened weights that are compatible with the adapter unit. These weights work much the same way as changing out buffers or adjusting the gas-port settings, and you can use them as an additional variable to fine-tune your gun Mfg: Cmmg