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Daniel Defense DDXV 16" AR15 Upper Receiver Hammer Forged Barrel Description Daniel Defense manufactures the highest quality complete AR15 upper receivers on the market today! Every Daniel Defense upper is painstakingly hand assembled, quality assurance tested, and test fired to ensure that the highest quality product makes it to the hands of our customers. The Daniel Defense DDXV complete upper receiver groups come complete with: 1) BCG (Bolt Carrier Group) 2) Charging handle 3) Industry Leading 16″ Cold Hammer Forged Barrel 4) A1.5 Fixed Rear Sight 5) Carbine Length Plastic Handguards. Specifications - Upper Receiver: A4 Upper Receiver with M4 Feed Ramps
- Barrel Characteristics: 16″ Cold Hammer Forged, 5.56 NATO Chamber, 1:7 Twist, Chrome Lined, Mil Spec Heavy Phosphate Coated, HP and MPI tested
- Barrel Material: Ordnance Grade 4150 Steel
- Barrel Profile: M4 Profile
- Complete Upper Weight: 4 lbs.
- Bolt Carrier Group: F/A BCG, HP and MPI Tested, Shot Peened Bolt, Extractor Booster, Properly Staked Gas Key
- Flash Hider: A2 Bird Cage Flash Hider
- Sights: A1.5 Fixed Rear Sight; F Marked Front Sight Base
- Handguards: Carbine Length Plastic Handguards.
- Chamber: 5.56 NATO
- Threads: 1⁄2×28 TPI
- Barrel Diameter at Gas Port: .750″
- Made in the USA!
FAQ: What's special about a Hammer Forged Barrel? Hammer forging was developed in Germany in 1939. Here a drilled barrel, rather than being reamed, is honed to give it a very fine interior finish. Then it is placed on a tungsten carbide mandrel that has the entire rifling pattern ground in relief into its surface. During production of the barrel, the internal profile is formed by a series of opposing power hammers which concentrically “crush” the drilled blank around a precision-ground and hardened mandrel. This process yields an extremely uniform bore with a tough, consistent surface finish on the inside of the barrel. The forging process also work hardens the barrel steel resulting in a very durable and much longer lasting barrel. Manufactured completely in house, these barrels are constructed of 4150 Ordnance Grade Steel and are MPI and HP Tested. Cold Hammer Forged Barrels are chambered in 5.56 NATO with a 1:7 twist rate. The bore as well as the chamber are hammer forged and chrome lined. They feature an A4 Barrel Extension and are threaded 1⁄2×28 for a muzzle devise. The exterior is Military Specification Heavy Phosphate coated. These barrels will prove themselves to be more accurate and last longer than a barrel that has cut or button rifling. What is Magnetic Particle Inspection (MPI) and High Pressure Testing (HPT)?The barrels are HPT (High Pressure Testing) tested which is a process wherein a proof load rated at 70,000 psi (far exceeding the pressure of a normal round) is fired trough the barrel. The barrel is then tested with a non-destructive process called MPI (Magnetic Particle Inspection). MPI is a process that utilizes magnetic powder to detect any flaws in the barrel extension and barrel from the proof load. Many manufacturers only MPI a couple rifles a batch. EVERY Daniel Defense barrel is MPI tested.
Materials & Construction Precision crafted from the highest quality material available today with meticulous attention to detail, our Cold Hammer Forged Barrels will prove to be the benchmark in the industry.  |
