DIAMONDBACK 5.56mm 16in Carbine Length Barrel (556C16M50B9)
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Diamondback
Overview
The Diamondback 5.56mm 16-inch Carbine Length Barrel is designed for optimal performance in a variety of shooting applications, featuring a carbine-length gas system that enhances reliability and reduces recoil. With its M4 profile, this barrel balances weight and rigidity, making it suitable for both tactical and recreational use. This barrel is commonly found in builds aimed at versatility, often serving as a solid foundation for standard AR-15 carbines.
Specifications
DIAMONDBACK 5.56mm 16in Carbine Length Barrel (556C16M50B9)
Available Merchants(4)
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Build history on GunPartPicker
Builders have been adding the DIAMONDBACK 5.56mm 16in Carbine Length Barrel (556C16M50B9) to their builds on GunPartPicker since March 2026. All time, it ranks #371 of the 811 barrels builders have added.
It was hard to find in August 2026, in stock on only 11 of the 27 days we checked, and today none of the 4 retailers we track has it in stock right now. The best price crept up from $86.99 to $110.99 over August 2026. Listed prices start at $89.38 at BattleHawk Armory for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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Read the guide: AR-15 Barrel Length & Brand Report →Check it against the live catalog:
Frequently Built With
The part most often added in each category by the 6 builds that include this one
Tacfire AR-15 Upper Receiver with Dust Cover and Forward Assist - UP01-C
Midwest Industries Quad Rail AR-15 Handguard - 15"
PSA AR-15 Complete Lower Magpul MOE EPT Edition - Flat Dark Earth, No Magazine
PSA AR-15 Bolt Carrier Group 5.56 Full-Auto Nitride MPI - 516446953
Expo Arms Carbine Length Gas Tube - Stainless Steel
Tacfire AR15 Charging Handle Serr Tac Ltch
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
Builds Featuring This Part
See all 2 →Builds in the community that include the DIAMONDBACK 5.56mm 16in Carbine Length Barrel (556C16M50B9)
| Build | Parts | Total |
|---|---|---|
 | 20 | $802.16 |
 | 21 | $1376.08 |
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