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
Aero Precision M4E1 5.56 Assembled Upper Receiver W/ M-LOK Atlas S-one Handguard is an upper receiver chambered in M4E1 5.56 Assm Uppr 18''. Finish: Black.
Manufacturer details
This complete upper includes Aero Precision’s new ATLAS S-ONE Handguard! The S-ONE line of handguards are designed with size and weight in mind, providing the perfect addition to your lightweight build. Aero Precision’s proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards.
Features
- M4E1 Threaded Assembled Upper Receiver
- Choice of 12” or 15” M-LOK ATLAS S-ONE Handguard
- 16" 5.56 Mid CMV Barrel, 18” Rifle Barrel
- Low Profile Gas Block and Mid-Length/Rifle Length Gas Tube Depending on Configuration
- Product comes assembled
- This complete upper does not include BCG or Charging Handle
- New enhanced forging that gives the upper receiver a "billet look"
Specifications
- Brand: Aero Precision
- Twist: 1-7
- Finish / color: Black
- Fits: AR-15
- UPC: 840014601622
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.
