The LanTac 556 Enhanced Bolt Carrier Group provides a fantastic option for a new firearm build or for upgrading your current AR-style rifle or pistol. Designed to run smoother, cooler, and cleaner, it is also optimized for suppressed shooting. Get this BCG today for the best price online from GrabAGun!
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The entire carrier assembly is QPQ (Quench Polish Quench) Nitride coated Black, this is a specialized type of Nitrocarbrising Case Hardening that creates a very hard, smooth surface with increased corrosion resistance and low coefficient of friction. The carriers patented and patent pending design features unique shrouded and forward facing gas ports that have also been resized so that gas is vented differently to a standard carrier. This results in a system that runs flatter with a smoother energy pulse with a softer start to carrier movement. In addition the system also runs cooler and cleaner, there is also less pressurization of the upper receiver when running a suppressed barrel. The flared boss at the tail of the carrier enhances the BCG's lock position within the upper and makes it more consistent, resulting in an accuracy improvement. All critical dimensions are hard turned / ground after heat treat and the gas key has been hard chrome lined for the best possible wear resistance.
556 Enhanced BCG Specifications
Weight 11.7oz
Full Auto & Semi-Auto Compatible
Forward Porting, enlarged vents.
Balanced flared boss.
8620 Carrier, Heat Treated, Hard Turned & Ground.
MPI Carpenter 158 Bolt, Shot Peened, Hard Turned / Ground.
QPQ Nitride Coating
CP-R360 Domed Cam Pin
Mil-Spec Gas Rings
Mil-Spec Staked Gas Key
Grade 8 Hardened Fasteners
All Hard Chrome surfaces are to MIL-STD-171 1.2.2.2
Shot Peening is conducted with S110 shot, Established by Almen Gage A-2 strip .006 -.008
More Information
Condition
New in Box
Finish Per Color
Black
Manufacturer
LanTac
Manufacturer Part Number
01-UP-556-NIT-EBCG
Model
556 Enhanced BCG
Type
Misc AR Parts
UPC
712038709168
WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to WWW.P65WARNINGS.CA.GOV
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