The UDP-556 has all the features that you are looking for in the AR-15 platform. Chambered in 5.56 NATO, it features a 16" chrome moly barrel with a 1:7 twist and is threaded to 1/2x24, giving you the ability to choose from a number of aftermarket muzzle devices. In addition, the UDP-556 comes standard with a B5 Systems SopMod Stock as well as a B5 Type-23 grip. This rifle is comfortable to handle whether you're a casual shooter or a serious competitor. All models also feature a free floated barrel with a 16" ultra light M-LOK handguard.
Manufacturer Angstadt Arms
Model UDP-556
Action Semi-automatic
Type AR
Caliber 223 Remington
Caliber 556NATO
Barrel Length 16"
Color Gray
Grips B5 Type 23
Accessories 1 Mag
Type of Barrel 1:7
Capacity 30Rd
Description 16" Ultra Light Free Floating M-Lock
Subcategory Modern Sporting Rifles
Finish Matte Stock B5
Caliber Dictionary
The Below Information Has Been Provided From Our Gun Caliber Dictionary And Is Meant For Informational Purposes Only. It Is Not Intended to Describe The Unique Specifications For This Ammunition.
Introduced in 1964, the 223 Remington is the civilian version of the 5.56x45mm NATO cartridge. Although very similar to the 222 Remington it has a slightly longer case and a shorter neck, giving it greater powder capacity and thus higher velocity--which was necessary to meet military penetration requirements at longer range. NOTE: 223 Remington ammunition may be safely fired in any 5.56x45mm chamber, but 5.56x45mm ammunition SHOULD NOT BE USED in a 223 chamber! Standard is a 55-grain bullet at 3240 feet per second, with lighter bullets somewhat faster and heavier bullets a bit slower. The 223 is the most popular 22 centerfire today, and possiby the most popular centerfire cartridge. Ammunition choices are legion, as are choices in firearms. The 223 is an accurate cartridge ideally suited for varmint hunting out to beyond 300 yards, and with heavy-bullet loads designed for the purpose is used effectively by many deer hunters. — Craig Boddington
