Aero Precision M4E1 ATLAS S-ONE 300 BLK Pistol

Aero Precision M4E1 ATLAS S-ONE 300 BLK Pistol


Must be shipped to FFL Dealer

Completely Assembled & Range Ready
Availability: Out of stock SKU: APCR640338

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Aero Precision M4E1 ATLAS S-ONE 300 BLK Pistol

Fully Assembled and Range Ready from Aero Precision!

The Aero Precision M4E1 ATLAS S-ONE 300 BLK Pistol features a black anodized M4E1 Receiver Set, ATLAS S-ONE 9″ MLOK Handguard, 10″ .300 Blackout Carbine Barrel, VG6 Gamma 300, Black Nitride BCG, Ambi Charging Handle, SB Tactical SBA3 Brace, and Magpul MOE SL Grip.  Good things come in small packages!


FFL Terms and Conditions

– Any items placed on the same order as a controlled item will also be shipped to the FFL. If you would like additional items shipped to you directly, please place them on a separate order.

– Please enter your information or the receiving party’s (the person that will be picking it up) information in “Order Notes” at check out.

– Prices do not include your dealer’s transfer fees.

– To expedite your order, please either you, or your dealer email their FFL to us. Your order will not process, until received, and validated.

Email: or submit your FFL Here

There will be a 30% restocking fee on all controlled items returned because of failed background checks.

Federal law requires that you be 21 years or age or older to purchase a stripped receiver or frame. If a frame or receiver can only be made into a long gun (rifle or shotgun), it is still a frame or receiver not a handgun or long gun. However, they still are “firearms” by definition, and subject to the same GCA limitations as any other firearms. See Section 921(a)(3)(b). 18 U.S.C. Section 922(b)(1) makes it unlawful for a licensee to sell any firearm other than a shotgun or rifle to any person under the age of 21.

Product Information

SKU: APCR640338
Manufacturer: Aero Precision
Platform:  AR15
Barrel Length: 10″
Gas System: Pistol
Caliber: 300 Blackout
Finish: Black Anodize
MSRP: $1099.99

Arm or Ally is a stocking dealer for  Aero Precision, Faxon, Polymer80, Ballistic AdvantageToolcraft, SB Tactical, Holosun and more. See our growing inventory of AR Parts, Firearms and Reloading Components.

Additional information

Weight 141 oz
Dimensions 53 × 12 × 5 in

Aero Precision



Part Type

Lower Receiver, Lower Receiver Parts, Upper Receiver, Upper Receiver Parts

Barrel Finish

QPQ Nitride

Barrel Length



300 Blackout

Gas Block Diameter


Gas System