No ratings yet
Be the first to review this product
Merged description: Faxon Duty Barrel 5.56x45mm NATO, 10.5 in, 1:8 twist, pencil contour; Black Nitride finish. Includes 4150 CMV steel construction and carbine-length gas system (per B), button rifled, MPI/air-gauge features from A; maintains 10.5" length and 1:8 twist; UPC 816341023086; MPN 15A58C10NPQ.
Estimate only. Based on caliber + barrel length bucket. View details
Sponsored
Cash for Arms
Instant offer on any firearm
No negotiating, no strangers at your door. Ship it and get paid.
Get an OfferHave one to sell?
Current
$151.80
Lowest
$123.34
Highest
$161.00
Sign in to save a target price and receive an email when this component drops.
Sign In to Set AlertGuide
A comprehensive overview of every major component in an AR-15 build—including what's inside bolt carrier groups and parts kits—organized by assembly for new builders.
12 min read
Guide
A neutral guide to how barrel length affects velocity and handling, how profile changes weight and heat management, and how twist rate stabilizes different bullet weights.
8 min read
Guide
A neutral guide to component strategies for left-handed shooters, left-eye dominant right-handed shooters, and those managing eye/hand dominance mismatches. Covers ambi uppers, charging handles, gas system tuning, and real-world tradeoffs.
6 min read