Aero Precision M4E1-T Complete Upper, 14.5" 5.56 Mid-Length Barrel w/ Pinned Epsilon 556SL, 12" M-LOK ATLAS R-ONE HG - Anodized Black - APAR700704M68
Only 3 left in stock
This complete upper includes the ATLAS R-ONE Handguard! The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. The 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.
We’ve taken the pain out of building a legal 14.5″ rifle build. These pinned and welded 14.5″ complete uppers feature an Epsilon 556SL that is permanently affixed to the muzzle providing an overall legal length of 16″. Worried you might want to change your gas block? No worries! The outer diameter of the Epsilon 556SL allows you to easily slide your gas block over the muzzle device making it easy to change or service your gas system.
If you’ve had a 14.5″ build planned, but didn’t want to deal with the hassle of getting it pinned and welded or being stuck with a specific configuration, then our 14.5 pinned and welded barrels/uppers are for you!
Includes:
- M4E1 Threaded Assembled Upper Receiver
- 12″ ATLAS R-ONE M-LOK Handguard of choice
- 14.5″ 5.56 Mid-Length CMV Barrel
- Pinned Low Profile Gas Block and Mid Length Gas Tube
- VG6 Epsilon 556SL
- Product comes assembled
- This complete upper does not include BCG or Charging Handle. These products may be selected as add-ons under the FINISH YOUR BUILD tab
- The muzzle brake that comes with this complete upper receiver is pinned to this barrel. Per the National Firearms Act, the muzzle brake MUST be pinned and welded to achieve the necessary 16″ as defined by the ATF for a rifle build.
M4E1 Threaded Upper Receiver Features:
- New enhanced forging that gives the upper receiver a “billet look”
- New picatinny profile that blends seamlessly with our Enhanced Series Handguards
- M4 Feedramps
- .250 takedown pin holes
- Laser engraved T-marks
- Includes port door and forward assist installed
ATLAS R-ONE Handguard Features:
- Full top picatinny rail for optional attachments
- Quick disconnect sling socket at the 3, 6 and 9 o’clock positions
- Compatible with low profile gas blocks
- 1.3″ ID
Weight | 49.98 oz |
---|---|
Dimensions | 26.5 × 5 × 5 in |
Barrel Finish | Nitride / Melonite |
Barrel Profile | Medium |
Gas System Length | Midlength |
Barrel Length | 14.5" |
Cartridge Compatibility | 5.56 NATO |
Twist Rate | 1-7 |
BCG / Charging Handle | Not Included |
MPN | APAR700704M68 |
UPC | 815421028546 |
Compliance
NFA (National Firearms Act) compliance is crucial for legal ownership and transfer of regulated firearms and accessories like short-barreled rifles, suppressors, and certain types of ammunition, ensuring adherence to federal regulations to avoid legal penalties and ensure responsible firearm ownership.
Customer Reviews
- Reviews
- Questions
Thank you for submitting a review!
Your input is very much appreciated. Share it with your friends so they can enjoy it too!
Exactly as advertised.
Always a fan of Aero, but first time with their ATLAS handguard and it is a big upgrade from their normal enhanced mil-spec line. No complaints with the pin, welding. Epsilon SL is a very effective brake so no worries that it is now permanent. If you are looking for a 14.5" ->16", hard to find a better product at this the price range, quality.
Please select an FFL from the table below, if you do not see your desired FFL, click "Set Later" and you will be able to enter your FFL's information after checkout.
Name | City | State | ZIP | Phone | |
---|---|---|---|---|---|
Loading FFL contacts, please wait...
|