22lr Barrel Assembly For AR-15 - 4.5 Barrel Sub-Assembly W/ Collar Kit 22lr

Name: 22lr Barrel Assembly For AR-15 - 4.5 Barrel Sub-Assembly W/ Collar Kit 22lr
Brand: CMMG
Availability: InStock

CMMG · Barrels

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22lr Barrel Assembly For AR-15 - 4.5 Barrel Sub-Assembly W/ Collar Kit 22lr

Best price

$161.99at Ammunition Depot

In stock Lowest in 30 dayschecked Nov 13, 2026

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Fits and works with

Caliber: .22 LR · Shop matching ammo
Bolt: .22 LR · Bolt carrier groups
Gas system: Carbine · Handguards
Muzzle thread: 1/2x28 · Muzzle devices

Specifications

Manufacturer: CMMG
Platform: AR-15
Caliber: .22 LR
Gas system: Carbine
Twist rate: 1:16
Thread pattern: ½ x 28

Where to buy

Store	Price	Availability	Buy
Ammunition Depot Best price	$161.99checked Nov 13, 2026	In stock	Buy at Ammunition Depot
Brownells 17.76% off · ends Nov 15 · exclusions apply	$190.77checked Nov 13, 2026	In stock	Buy at Brownells
CMMG	$174.95checked Nov 13, 2026	Check store	Buy at CMMG
Palmetto State Armory	$180.99checked Nov 13, 2026	Check store	Buy at Palmetto State Armory

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: $161.99 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	$161.99	$161.99	$161.99
Brownells	$190.77	$190.77	$190.77
CMMG	$174.95	$174.95	$174.95
Palmetto State Armory	$180.99	$180.99	$180.99

Since Sep 27, 2026.

About this part

The 22lr Barrel Assembly For AR-15 - 4.5 Barrel Sub-Assembly W/ Collar Kit 22lr is a .22 LR barrel from CMMG with a carbine gas system. It's sold by 4 stores (2 in stock), from $161.99 to $190.77. The lowest in-stock price in the last 30 days was $161.99 at Ammunition Depot.

From the manufacturer

Perfect for building your custom dedicated 22LR AR-15 upper group. Also Includes barrel collar to replace the chamber adapter on your 22AR Conversion. Available as: 4.5" Barrel available with or without a Collar Kit Medium Taper Profile 4140 Chrome Moly Salt Bath Nitride Finish inside and out 1:16 Twist 22LR Sprorting Chamber Threaded 1/2-28" Available as: 16.1a ^2 Barrel available with or without a Collar Kit M4 Profile 4140 Chrome Moly Salt Bath Nitride Finish inside and out 1:16 Twist 22LR Sprorting Chamber Threaded 1/2-28 .750a ^2 Carbine length Journal Mfg: Cmmg