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Daniel Defense
Overview
The Daniel Defense 16" 5.56 M4 Carbine Barrel is designed for precision and reliability, featuring a 1:7 twist rate that stabilizes a wide range of bullet weights, making it ideal for various ammunition types. With a carbine-length gas system and a .750 diameter gas block, this barrel ensures consistent cycling and performance in your AR-15 build. This barrel is typically found in builds that prioritize versatility and reliability, particularly those chambered in 5.56 NATO with a carbine gas system.
Daniel Defense 16" 5.56 M4 Carbine Barrel, 1-7 Twist
Prices checked
Daniel Defense 16" 5.56 M4 Carbine Barrel, 1-7 Twist ranked #80 of the 329 barrels builders added on GunPartPicker in October 2026. Builders have added it to their builds on GunPartPicker. Since April 2026, it ranks #44 of the 1,042 barrels builders have added. Builds with this barrel are nearly all chambered in 5.56 NATO, nearly all on carbine-length gas, and nearly all AR-15.
It was in stock most times we checked in October 2026, and today all 4 retailers we track have it in stock. It dipped to $343.99 at Ammunition Depot for a stretch in October 2026, well under its usual $406.99, so sales do come around. Buying today, the lowest price is $406.99 at Ammunition Depot, above October's low of $343.99, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
We ranked every barrel by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Barrel Length & Brand Report →Check it against the live catalog:
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Aggregated and anonymized data showing how builders use this product
Builds in the community that include the Daniel Defense 16" 5.56 M4 Carbine Barrel, 1-7 Twist
| Build | Parts | Total |
|---|---|---|
![]() | 10 | $2899.85 |
![]() | 23 | $3860.46 |
![]() | 24 | $3261.06 |
![]() | 20 | $1913.97 |
![]() | 13 | $1204.78 |
![]() | 12 | $3189.08 |
![]() | 10 | $1643.98 |
![]() | 12 | $1399.66 |
![]() | 22 | $4656.42 |
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