Daniel Defense 12.5″ 5.56 Hammer-Forged Carbine Barrel w/ Pre-Drilled & Pinned Gas Block
The heart and soul of a quality rifle
Daniel Defense barrels are cold-hammer forged from 4150 Chrome Moly Vanadium steel and chrome-lined for a lifetime of long, hard use.
SPECIFICATIONS:
- Length: 12.5″
- Contour: Government
- Gas System Length: Carbine
- Gas Block: Daniel Defense Low-Profile Gas Block, Pre-Drilled for Installation with Supplied Taper Pin
- Gas Block Journal Diameter: 0.750″
- Thread Pitch: 1/2×28
- Chamber: 5.56 NATO
- Twist: 1:7 Twist
- # of Grooves: 6 Grooves
- Material: 4150 Chrome Moly Vanadium
- Finish: Chrome-lined, Phosphate
- Actual Weight: 1.48 Pounds




D T. (verified owner) –
First one had to go back to DD due to a crown blem. The replacement was perfect, but the GB GT retaining pinhole needed reaming (mcmaster reamer). Outstanding CS from RT. Installed onto a LMT flattop with DD RISIII. It is finally done now and very fun to run!
Aaron A. (verified owner) –
This was the only place that had these barrels that included the pinned gas block from the factory and at a reasonable price. Because of this I was skeptical to be honest, however when they arrived they were absolutely pristine, and even came with a nice note, a pack of ramen and a pocket constitution!
I have since spread the word about this company and have friends that will be shopping here now. Only thing I can say about the Daniel Defense barrels is to be sure you a good set of punches, a Starret concaved taper pin punch and a good bench block meant for this as these pinned taper pins are very tight to get in all the way.