About this gas system part
FN 36423 AR-15 5.56x45mm NATO 18" Rifle Length Gas System, Black Phosphate Cold Hammer Forged Chrome Lined is a gas system part.
Gas blocks and tubes must match the barrel's journal diameter and gas system length (pistol, carbine, mid-length or rifle). Measure the barrel at the gas port before ordering, and check that the block clears your handguard.
Manufacturer details
FN AR15 barrels are hammer forged using the same proprietary highgrade Chrome MolyVenadium steel used in FNs venerable machinegun barrels produced to handle the punishment of sustained fullyautomatic fire. After forging, each barrel is Magnetic Particle tested to ensure that it is free of microstresses or flaws, resulting in consistency and quality in every barrel shipped from the factory. The bore and chamber are chrome lined to help resist corrosion and provide resistance to heat erosion which greatly improves barrel life and reliable chambering/extraction. The M4 style feed ramps and barrel extension provide consistent feeding and the matte black Manganese Phosphate finish resists external corrosion and oxidation.
Specifications
- Brand: FN
- Fits: AR-15
- Length: 18 in
- Barrel Type: Rifle Length
- Finish: Manganese Phosphate
- Bore Type: Chrome Lined
- Barrel Features: Chrome-Lined
- Manufacturer Part #: 36423
- UPC: 845737005146
Buying from WBT Guns
- Delivery: Ships to your door anywhere in the United States, or pick it up free at our La Mesa store.
- Payment: Pay in full or finance with Credova.
- Questions: Fitment or compatibility questions? Call (619) 667-9453 or email sales@wbtguns.com. FAQ
WBT Guns is family-owned in La Mesa, California, and has served shooters since 2012.
A note on accuracy. Specifications, fitment and images come from the manufacturer and can contain errors or change without notice. If a detail matters to your purchase, call us and we will confirm it before you order. Any compliance notes are general information, not legal advice; California and local laws change, and the rules that apply depend on the firearm the part goes on.
