CMMG Barrel Stripped 16" M300 Le AAC W/car Gas

Cmmg Barrel Stripped 16" M300 Le Aac W/car Gas - Barrel for AR-15 - view 1
Cmmg Barrel Stripped 16" M300 Le Aac W/car Gas - Barrel for AR-15 - view 2
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CMMG

Overview

The CMMG 16" M300 barrel is designed specifically for the 300 Blackout caliber, featuring a medium profile that balances weight and performance. With a carbine-length gas system and a twist rate of 1:7, this barrel provides reliable cycling and optimal stabilization for a variety of bullet weights, making it suitable for both supersonic and subsonic loads. This barrel commonly appears in builds focused on the 300 Blackout caliber, especially those where a carbine gas system is preferred.

Specifications

MPN30DF80A
Twist Rate1:10
Thread Pitch5/8x24
Caliber300 Blackout
Gas System LengthCarbine
CoatingNitride
FinishBlack
Barrel ProfileMedium
Barrel Length16
Gas Block Diameter.750

Available Merchants(9)

Prices checked

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Ammunition Depot logo
Ammunition Depot
~$28.90 est. shipping
Shipping Speed
In Stock
$177
Primary Arms logo
Primary Arms
Free shipping
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In Stock
$190
Classic Firearms logo
Classic Firearms
Shipping varies
Shipping Speed
In Stock
$191
Palmetto State Armory logo
Palmetto State Armory
Free shipping
Shipping Speed
In Stock
$191
Optics Planet logo
Optics Planet
Free shipping
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In Stock
$200
AT
AT3 Tactical
Shipping TBD
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In Stock
$221
CM
CMMG
Free shipping
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In Stock
$225
BattleHawk Armory logo
BattleHawk Armory
Shipping varies
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Out of Stock
$151
Brownells logo
Brownells
Free shipping
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Out of Stock
$215

Build history on GunPartPicker

Builders on GunPartPicker first added the CMMG Barrel Stripped 16" M300 Le AAC W/car Gas to a build in February 2026.

Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today 7 of the 9 retailers we track have it in stock. The best price crept up from $154.99 to $215.38 over August 2026. Buying today, the lowest price is $176.99 at Ammunition Depot, above August's low of $150.93, so a better deal may come back.

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