AR-15 A1 Receiver Extension

Name: AR-15 A1 Receiver Extension
Brand: CMMG
Availability: InStock

CMMG · Buffer Tubes & Springs

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Best price

$40.49at Ammunition Depot

In stock Lowest in 30 dayschecked Nov 10, 2026

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Where to buy

Store	Price	Availability	Buy
Ammunition Depot Best price	$40.49checked Nov 10, 2026	In stock	Buy at Ammunition Depot
Brownells	$43.08checked Nov 10, 2026	In stock	Buy at Brownells
OpticsPlanet	$57.39Salechecked Nov 10, 2026	In stock	Buy at OpticsPlanet
Classic Firearms	$40.35checked Nov 10, 2026	Check store	Buy at Classic Firearms
Palmetto State Armory	$40.69checked Nov 10, 2026	Check store	Buy at Palmetto State Armory
CMMG	$44.95checked Nov 10, 2026	Check store	Buy at CMMG

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: $40.49 at Ammunition Depot. Dashed line = out of stock. Tracking since Sep 27, 2026.

Show the prices as a table

Store	Latest	Lowest	Highest
Ammunition Depot	$40.49	$40.49	$40.49
Brownells	$43.08	$43.08	$43.08
CMMG	$44.95	$44.95	$44.95
Classic Firearms	$40.35	$40.35	$40.35
OpticsPlanet	$57.39	$57.39	$57.39
Palmetto State Armory	$40.69	$40.69	$46.99

Since Sep 27, 2026.

About this part

The AR-15 A1 Receiver Extension is an AR-15 buffer part from CMMG. It's sold by 6 stores (3 in stock), from $40.35 to $57.39. The lowest in-stock price in the last 30 days was $40.49 at Ammunition Depot.