Shipping to California
- Status: Complete upper with a barrel. Not a serialized firearm, but we ship it to a licensed dealer only.
- Delivery: Ships to WBT in La Mesa or to the California gun store you choose; select your dealer at checkout. Not shipped to home addresses.
- Learn more: Featureless or fixed magazine: which fits your build · FAQ
About this upper
One Horse 6MM Arc Complete Upper Receiver W/ Hbar Rifle Barrel for AR-15 is an upper receiver chambered in 6mm ARC.
Manufacturer details
Take your AR-15 platform to the next level with this 6mm ARC 18″ Complete Upper Receiver, built for shooters who demand precision, reliability, and extended range performance. Designed around an 18-inch 416R stainless steel barrel with a 1:7.5 twist rate, this upper provides excellent stabilization across the range of 6mm ARC projectile weights, delivering outstanding accuracy for long-range shooting and hunting applications.
The free-float M-Lok handguard offers a lightweight and rigid platform that enhances accuracy while allowing shooters to easily mount lights, bipods, and other accessories. A nitride-finished bolt carrier group ensures smooth cycling and long-term durability under demanding use.
Built to Mil-Spec standards, this complete upper receiver includes a charging handle and bolt carrier group, making it ready to install on any Mil-Spec AR-15 lower receiver. Whether you’re building a precision rifle, a hunting setup, or a versatile AR platform, this 6mm ARC upper provides the performance needed to stretch your rifle’s capabilities.
Features
- ONE HORSE 6MM ARC COMPLETE UPPER RCVR W/HBAR RIFLE BARREL FOR AR-15
- SPECIFICATIONS:
- Caliber: 6mm ARC
- Barrel Profile: HBAR
- Muzzle Thread: 5/8X24
Specifications
- Brand: One Horse
- Caliber: 6mm ARC
- Fits: AR-15
- Manufacturer part #: OH-CU09
- UPC: 850078799852
Buying from WBT Guns
- Delivery: Complete uppers ship to a licensed dealer only. Free pickup at our La Mesa store, or select the California gun store you want it sent to at checkout.
- Payment: Pay in full, put 50% down with the balance due in 14 days, or finance with Credova.
- Questions: Call (619) 667-9453 or email sales@wbtguns.com. FAQ
WBT Guns is family-owned in La Mesa, California, and has shipped parts and receivers to California buyers since 2012.
A note on accuracy. We work hard to keep every listing correct, but specifications, images and compliance details come from many sources and can contain errors or change without notice. Images may show a configuration that is not California-legal. If a detail on this page matters to your decision, call us and we will confirm it against the actual firearm before you order. The compliance information here is general in nature and is not legal advice; California and local laws change, and the configuration described is confirmed at the time of sale. All sales are subject to applicable federal, state and local law and to the buyer's eligibility to purchase.
