CA Compliance:
California compliance
- Status: Legal to own in California.
- Configuration: Fixed magazine (AR MagLock), installed by WBT. The rifle keeps its pistol grip, adjustable stock and flash hider. To reload, you open the action, swap the magazine and close it.
- Magazine: 10-round.
- Your options: If this page shows a compliance selector, choose the build you prefer and we configure it that way. If not, this is the configuration we offer by default; on AR-pattern rifles and some AKs a different build is often possible, so ask us before you order.
- Upgrades: Add the KingPin quick-release takedown pin for faster reloads. See California Compliance Upgrades; add it to this order and it ships installed.
- Learn more: How fixed-magazine rifles work · How featureless rifles work · Why some rifles can only be built one way
About this rifle
Aero Precision M4E1 (Enhanced M-LOK HG) is an AR-15 chambered in .223/5.56 with a 16" barrel and a 10-round capacity. Finish: FDE. WBT configures it for California at our Yuma, Arizona warehouse before it ships.
Manufacturer details
The Aero M4E1 Rifle is built on Aero's Enhanced Series Upper Receiver. Featuring a custom integrated upper receiver and handguard system, the shooter is provided a light-weight, free-floated rigid design. Superior performance and accuracy is the result in every M4E1 Complete Rifle.
- Aero Precision Enhanced M-LOK Handguard
- Magpul MOE Grip & SL Carbine Stock
- Flat Dark Earth
Specifications
- Brand: Aero Precision
- Caliber: .223/5.56
- Action: Semi-Automatic
- Capacity: 10
- Barrel: 16 in
- Finish / color: FDE
- California compliance: Fixed Magazine – MagLock
- Manufacturer part #: APCR640442
- UPC: 840014620838
Buying from WBT Guns
- Delivery: Free pickup at our La Mesa store with no transfer fee, or shipment to any California gun store you choose. Select your FFL at checkout.
- Compliance guarantee: Every firearm leaves our shop in the configuration described on this page, function-checked by our compliance team.
- Payment: Pay in full, put 50% down with the balance due in 14 days, or finance with Credova.
- Paperwork: Firearm Safety Certificate, DROS and California's 10-day waiting period apply. We handle each step with you at pickup.
- Questions: Call (619) 667-9453 or email sales@wbtguns.com. FAQ · California Rifle Compliance Guide
WBT Guns is family-owned in La Mesa, California, and has configured firearms for 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.
