Aero Precision M4E1 (5.56mm) Semi-Auto Rifle - 20" Barrel - Timney Straight Trigger & Luth-AR Stock

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Aero Precision M4E1 Semi-Auto Rifle – 20″ Barrel


This Aero Precision M4E1 complete rifle chambered in 5.56mm features many upgraded components including a 20″ barrel for long range shooting, all at a price that is budget friendly.  This rifle is ready to operate straight out of the box.  All Aero Precision rifles are assembled by Aero’s professional gunsmiths and are tested prior to leaving their facility.


  • Aero’s M4E1 receiver set featuring new enhanced forging that gives the lower & upper receiver a “billet look”
  • 18″ Midwest Industries M-LOK Handguard
  • Timney Straight AR-15 Single Stage Trigger (3.0 lbs)
  • Radian Raptor Ambidextrous Charging Handle
  • Luth-AR Modular Buttstock Assembly MBA-3 Carbine

Timney AR-15 Competition Small Pin Straight Trigger

This rifle features a Timney AR-15 Competition Small Pin Straight Single Stage Trigger.  The trigger is factory preset with a pull weight of 3 pounds.

Luth-AR Modular Buttstock MBA-3 Carbine

The MBA-3 Carbine is a new revolutionary designed stock that will allow shooters to have full adjustability. N ot only is it the lightest and most affordable adjustable buttstock on the market, it includes several stand-out features and attributes.

The MBA-3 includes the following features:

  • It adds up to 1-inch of height on the cheek rest, and an additional 1-1/16 inch length of pull
  • Made of super strong glass-filled nylon, the Luth-AR MBA-3 weighs roughly half that of comparable stocks coming in at just 18 ounces.
  • Includes a Picatinny Rail on the bottom rear of the Stock Body to attach your choice of many accessories.
  • Designed a flat bottom index set screw (10-24) to eliminate that constant rattle of carbine collapsible buttstock. This also allows you to secure the stock in your favorite position.
  • 3-axis adjustable butt plate assembly (keep in mind this butt plate assembly is interchangeable with the original MBA-1 Buttstock) will have the following movement:
    • Horizontal for linear adjustment (i.e. length of pull)
    • Vertical for a perfect butt plate fit into the curvature of the shoulder.
    • Lateral adjustment for a ½ inch left or right cast.


Additional Information
ManufacturerAero Precision
TypeRifle: Semi-Auto
Caliber5.56mm NATO
ReceiverAero Precision M4E1 (Black)
TriggerTimney Flat Single Stage Trigger (3.0 lbs)
Handguard18″ Midwest Industries M-LOK
Charging HandleRadian Raptor Ambidextrous Charging Handle
StockLuth-AR Modular MBA-3 Carbine Stock
Barrel Length20″ (1:7 Twist)
Overall Length38″ Collapsed; 42″ Extended
Weight7.3 lbs.
MagazineOne 30-Round Magpul PMAG
Product SKUAPCR640334

Additional Information Content

Modern Warriors

We started Modern Warriors for the sole purpose of providing a less expensive way to enjoy our love of buying and shooting some really cool stuff. What started as a hobby has turned into a business where we have developed the experience and ability to help you enjoy our same hobby and save you money in the process.

We specialize in tactical weapons, including suppressors, short barrel rifles and full auto weapons. We have routine experience in shooting the weapons we carry, so if you want our opinion on how a weapon operates, we will gladly provide it. We also have expertise working with licensed professionals in setting up gun trusts, which is an ideal way of purchasing, owning and operating any weapon restricted by the National Firearm Act. Don’t let the word “trust” scare you. It is very easy to set one up if you have the right help.

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