Aero Precision M4E1 Threaded Barreled Upper 5.56 Carbine Length ATLAS R-One - 16" - APAR700705M6
Only 2 left in stock
This Aero Precision M4E1 Threaded upper receiver group comes completely assembled with 16” 5.56 barrel and the ATLAS R-ONE M-LOK handguard. This barreled upper receiver group does not include BCG or charging handle allowing you to choose your favorites for your build. The upper receiver is, however, fully assembled with forward assist and dust cover. The M4E1 threaded upper is made from forged 7075-T6 aluminum with a billet machined look that matches the lower and handguard. The ATLAS R-ONE free float handguard is 15” and features a 1.3” inner diameter that surrounds the low profile gas block and carbine length gas tube.
Features:
- M4E1 threaded upper receiver
- Forged 7075-T6 aluminum
- Assembled forward assist and dust cover
- 15” ATLAS R-ONE M-LOK handguard
- Hardcoat anodized
- 16” 5.56 NATO barrel
- Machined from Chrome Moly Vanadium
- Carbine length gas system
- 1:7 twist rate
- Threaded 1/2×28
- A2 flash hider
- Salt Bath Nitride finished
The 16” barrel is machined from Chrome Moly Vanadium steel with a salt bath Nitride finish and a 1:7 twist rate for stabilizing heavier rounds. It is threaded 1/2×28 with an A2 style flash hider, a lightweight and effective option. High pressure tested and magnetic particle inspected ensure this barrel is accurate and reliable. This Aero Precision AR-15 complete upper is a great choice for finishing an AR build.
Aero Precision takes some of the most state-of-the-art manufacturing techniques and equipment derived from their work in the aerospace industry and applies it to their products in the firearms industry. They have utilized their knowledge from years of building aircraft components to design and engineer AR-15 handguards, receiver sets, scope mounts, and more. They treat every product as if it were a precision flying machine and adhere to strict quality standards to ensure law enforcement, military, and civilian customers receive a product they can rely on.
| Weight | 80 oz |
|---|---|
| Dimensions | 28 × 5 × 5 in |
| Barrel Finish | Nitride / Melonite |
| Barrel Profile | M4 |
| Gas System Length | Carbine |
| Barrel Length | 16" |
| Cartridge Compatibility | 5.56 NATO |
| Twist Rate | 1-7 |
| BCG / Charging Handle | Not Included |
| MPN | APAR700705M6 |
| UPC | 840014602070 |
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
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I purchased this Complete upper thinking that it was the MID LENGTH one, unfortunately by the time i realized it was a Carbine Length one the order has been processed. But let me tell you though that i eventually got the correct one after the awesome customer service reps here at AR15dscounts assisted me every atep of the way. You see this is my first build and -st AR so you can just imagine the work i had to put in to research what i wanted and what i could afford only to find out i ordered the wrong thing. Lol. Be that as it may i was able To return the carbine length gas tubbed one and got my refund processed. As of this writing, refund has not been credited back uet but i did receive confirmation email from AR15 that they have already processed it from their end. Let me tell you tho that when i opened the box for this i was immediately impressed at the machining and finish of this upper. It was leaps and bounds better than other ready made inexpensive ARs in the market today. Ive held about 3 from companies i wont mention which are basically entry level rifles and i realized that i made a GOOD CHOICE to "build/assemble" my own with the parts that i want rather than buy a ready made one. It is much expensive but you do get what you really want and not have to spend more continuously upgrading a stock entry level AR. No regrets whatsoever that i chose Aero Precision for my upper.
