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 223 Wylde Assembled Upper Receiver M4 16''Barrel Mid-length Black is an upper receiver. Finish: Black.
Manufacturer details
Aero Precision’s M4E1 .223 Wylde Upper Receiver provides rifle-like performance - and versatility - in a carbine-sized package. It features a .223 Wylde chamber that is optimized to deliver excellent performance from both military 5.56x45mm NATO and civilian .223 Remington ammunition, including long, heavy (up to 80 grain) target bullets.
Aero put a longer gas tube on the M4E1 .223 Wylde Assembled Rifle Receiver to slow down gas velocity for gentler cycling that leads to improved reliability and reduced wear on moving parts and the receiver. The 16" barreled model comes with a Mid-Length gas system, while the 18" barrel comes with a Rifle-Length gas tube.
The M4E1 .223 Wylde Assembled Upper Receiver delivers all the other benefits of Aero Precision’s M4E1 receiver line. Bolt/carrier group and charging handle are both omitted so you can chose those parts from the many aftermarket offerings to suit your needs. The forged M4E1 receiver offers a unique "billet-like" appearance, while accepting standard AR-15 "mil-spec" parts.
Features
- Forged 7075 T6 aluminum receiver, Mil 8625 Type 3 Class 2 hardcoat anodized
- Ejection port cover & forward assist installed
- Handguard: length - 15"; 1.78" inside diameter clears most muzzle devices and 1.5" suppressors
- Low-profile gas block under the handguard
- A2-style flash suppressor
Specifications
- Brand: Aero Precision
- Finish / color: Black
- Fits: AR-15
- UPC: 815421020953
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.
